Ahead of Sundays derby, live on Sky Sports 1 HD, we examine how the balance of power has shifted in Manchester - and what Pep Guardiolas arrival could mean for the rivalry… Pep Guardiola to City may have been footballs worst kept secret but the confirmation of his move to the Etihad Stadium in February still sent reverberations around the red half of Manchester.As City were tying up a three-year contract for the most successful coach on the planet and a man famed for his thrilling attacking football, United were in the midst of a haphazard plod through the season which has left their under-pressure manager Louis van Gaal looking increasingly forlorn. It was an alarming contrast. Fast forward six weeks and the Guardiola announcement appears to have done little to aid Citys title challenge under the outgoing Manuel Pellegrini, but on Super Sunday they have the opportunity to open up a seven-point gap on their neighbours, and after Uniteds Europa League exit against Liverpool, the spotlight is firmly fixed on Old Trafford once again. Pep Guardiola will replace Manuel Pellegrini at the end of the season Just twenty-four hours prior to United and Liverpool going head to head on Thursday night, Citys next manager had emerged from Bayern Munichs Champions League last-16 tie against Juventus with his reputation in tact thanks to an extraordinary salvage job in Bavaria.The hosts were in deep trouble at 2-0 down, but a four-goal response sent Guardiola into the Champions League quarter-finals for his seventh consecutive season as a manager. Not once has he fallen short of the last four. Nor has he ever finished a domestic season outside of the top two. It is statistics such as those that make Guardiolas imminent move to City appear all the more galling for United. Here is a coach capable of laying the foundations for years of Premier League dominance. How could Ed Woodward and the Old Trafford hierarchy have allowed their bitter rivals to swoop ahead of them?For their part, United insist there was no attempt to hijack the move, but if Van Gaal is relieved of his duties in the summer, widespread reports suggest Jose Mourinho will be the man they turn to. The former Chelsea manager has plenty of experience of going toe-to-toe with Guardiola, after all, and enjoyed sweet victories over the Catalan with both Inter Milan and Real Madrid. Mourinho and Man Utd A timeline of events involving Jose Mourinho, Louis van Gaal and Manchester United. Regardless of who is in charge of United next season, however, they are already playing a daunting game of catch-up with their neighbours. Few could have envisaged just how far the Reds would fall after Sir Alex Fergusons retirement in 2013, but City finished 22 points clear of them in 2013/14, and they were nine clear in 2014/15. United have endured a poor Premier League season under Louis van Gaal The gap is down to four points ahead of Sundays derby, but that is hardly due to progress at Old Trafford. And while Citys title challenge has faltered, they are still in Champions League contention and have already lifted the Capital One Cup. Uniteds only hope of silverware, meanwhile, hinges on an awkward FA Cup quarter-final replay away to West Ham.With Guardiola in charge and the promise of unlimited backing in the transfer market, it is difficult to envisage anything over than considerable improvement at City next year. Defence and central midfield are areas in need of improvement, but the level of surgery required is nothing compared to Uniteds. Hart v De Gea Which goalkeeper will come out on top in the Manchester derby? Injuries have exposed shortcomings in practically every area of Van Gaals squad, with the manager forced to thrust untested youngsters into the fray due to a glaring lack of depth and quality in the senior ranks.United can take heart from the emergence of teenagers such as Marcus Rashford and Cameron Borthwick-Jackson, but repeated mistakes in the transfer market have taken a heavy toll over the last 18 months, with the brilliant form of Angel di Maria and Javier Hernandez at PSG and Bayer Leverkusen ramming the point home. Javier Hernandez has scored 23 goals for Bayer Leverkusen this season And while Guardiolas stay in Manchester may not extend beyond the three years of his contract, Citys huge investment in a new youth academy and state-of-the-art training facilities shows long-term preparation the like of which cannot be seen on the other side of the city - where a confused transfer policy points to muddled thinking.Citys long-term planning and strategy is clear, so is their succession planning, said Sky Sports News HQs James Cooper in February. In truth thats borne out by the building of the City Football Academy and the Manchester Institute of Health and Performance. How City persuaded Pep Sky Sports News HQs James Cooper explains how Man City lured Pep Guardiola to the Etihad. So while United grapple with decisions over their immediate future, City are already grooming Guardiolas successor. The New York City FC post is something of a job interview for Patrick Vieira, added Cooper. He is being seriously looked at as the next manager of the club after Guardiolas three years.With Guardiola on his way to City and given their own current malaise, its easy to see why United might turn to Mourinho. The 53-year-old is one of few coaches with a CV to rival the Bayern boss, and his trophy haul includes three Premier League crowns, two Champions Leagues and - most significantly - a La Liga title won at the expense of his old foe. Jose Mourinho has been strongly linked with a move to Manchester United But what of the long-term? Mourinho talked of creating a dynasty at Chelsea, however his managerial stints tend to unravel spectacularly - and his return to Stamford Bridge was no exception. Transforming United back into major contenders would be his toughest challenge yet, and history highlights the risks involved.The outcome of Sundays derby could have a significant impact on how United finish the season and it could also influence their decision-making over the coming months. Whatever the result, though, it is impossible to escape the reality that only one of the Manchester sides is primed for long-term success. United are in danger of being left behind.Watch the Manchester derby live on Sky Sports 1 HD from 3.30pm on Sunday. Also See: Giggs: Martial the model Hart v De Gea Aguero: Title slipping away When Geoff met Martial and Sterling Montrezl Harrell Clippers Jersey . PETERSBURG, Fla. Kawhi Leonard Clippers Jersey . "Were just throwing s--- at the wall hoping something sticks," said Tortorella about the possible line combinations for Fridays game against Columbus. The Canucks have lost five straight games and six of their last seven, leaving them in a logjam in the Pacific Division, currently sitting fifth - good for ninth in the Western Conference. https://www.clipperslockerroom.com/Maurice-Harkless-City-Edition-Jersey/ . "Four now," Carl Gunnarsson told the Leaf Report proudly following a 5-2 victory over New York on Tuesday night, the clubs fifth straight at home. Mfiondu Kabengele Clippers Jersey . Aside from the trilogy main event title fight, there are a number of intriguing matchups in the heavyweight, welterweight and lightweight divisions. Avery Bradley Jersey . The 28-year-old from Calgary matched his career best after missing just one shot in his two rounds of shooting in the mens 10-kilometre sprint competition. Smith finished in 23 minutes 15. THE 34 EVENTSMen (17 events)Freestyle: 50m, 100m, 200m, 400m, 1500mBackstroke: 100m, 200mBreaststroke: 100m, 200mButterfly: 100m, 200mIndividual medley: 200m, 400mRelay : 4x100m freestyle, 4x200m freestyle, 4x100m medleyMarathon: 10km open-water circuitWomen (17 events)Freestyle: 50m, 100m, 200m, 400m, 800mBackstroke: 100m, 200mBreaststroke: 100m, 200mButterfly: 100m, 200mIndividual medley: 200m, 400mRelay: 4x100m freestyle, 4x200m freestyle, 4x100m medleyMarathon: 10km open-water circuitTHE FORMATFor the 50m, 100m and 200m races there are qualifying rounds, semi-finals and finals (8 swimmers).For the 400m, 800m, 1500m and relay races, the 8 swimmers with the best times in qualifying advance directly to the final.For the marathon races, 25 swimmers set off in a mass start, and the first to reach the finish line is the winner.MILESTONES36 BCSwimming competitions are held in Japan.11 February, 1869Foundation of the Associated Metropolitan Swimming Clubs (AMSC) in London. The organisation, which will become the Amateur Swimming Association (ASA) in 1886, promotes swimming as a leisure activity and outlines the first rules of competition.1896Swimming features at the first modern Games, with 3 events: the 100m, 500m and 1200m freestyle.1912Women make their Olympic swimming debut, with 2 events.9 July, 1922American Johnny Weissmuller, who would go on to star as Tarzan in films of the 1930s and 1940s, becomes the first man to swim the 100m freestyle in under a minute (58.6 seconds).28 February, 1964Australian Dawn Fraser becomes the first woman to swim the 100m freestyle in under a minute (58.9 seconds) in Sydney. On 27 October, 1962, in Melbourne, she had compleeted a 110-yard (100.dddddddddddd.58m) race in 59.9sec.1972American Mark Spitz storms to an unprecedented 7 gold medals at the Munich Games: 4 in individual races and 3 in relay races.2008Michael Phelps goes one better than Spitz, winning 8 gold medals at the Beijing Games (3 in relay). With his 6 titles from the 2004 Games, the American becomes the most successful Olympic champion in history, with a total of 14 golds.STARSDawn Fraser (Australia)The Australian won the 100m freestyle gold at 3 consecutive Games, in 1956, 1960 and 1964, and also won the 4x100m freestyle relay in 1956. On top of her 8 Olympic medals, she set 28 world records and was the first woman to swim the 100m freestyle in under a minute.Mark Spitz (United States)The American achieved unprecedented success at the Munich Games in 1972, winning 7 gold medals and setting 7 world records in the freestyle (100m, 200m), butterfly (100m, 200m) and relays. With 9 gold medals overall (he won 2 in 1968), he held the joint record for most Olympic titles, along with Paavo Nurmi, Carl Lewis and Larisa Latynina, until the emergence of Michael Phelps.Ian Thorpe (Australia)A global media star, Ian Thorpe was just 21 when he won the race of the century at Athens 2004, beating Pieter van den Hoogenband and Michael Phelps in a spellbinding 200m freestyle final. He also defended his 400m crown at those Games, while golds in the 4x100m and 4x200m events at Sydney 2000 took his tally to 5 Olympic titles. A 6-time individual world champion, he retired in 2006 at the age of just 24. ' ' '