Guardiola also took aim at Spanish league president Javier Tebas, a long standing critic of City, who had questioned whether CAS was the right court for deciding such matters.
Manchester United manager Jose Mourinho also singled out Maguire, "normally a very honest guy...for diving in the box.
Chelsea go into Sunday's game holding a 10-point lead over second-placed Arsenal and manager Jose Mourinho may have to thrust one of his young strikers into the fray.
Arsenal will reportedly play Chelsea in a fourth-round Capital One Cup match after winning 4-3 on penalties against West Bromwich Albion on Wednesday at The Hawthorns.
Manchester United's Zlatan Ibrahimovic proved his hunger for silverware has not diminished with age as the Swede's double earned a 3-2 win over Southampton in an absorbing League Cup final at Wembley.
Chelsea midfielder Nemanja Matic hopes a late season flourish can make amends for the champions' dreadful start to the current campaign and put them in contention to break into the Premier League's top four for Champions League spots.
Liverpool's Juergen Klopp has been named Premier League manager of the month after leading the club to three consecutive wins in September, the first time the German has won the award.
Guus Hiddink is set to take over as Chelsea manager until the end of the season.
Sevilla coach Vincenzo Montella has suggested that the only way his side will be able to stop Manchester United forward Alexis Sanchez in Wednesday's Champions League last-16 first leg will be to tie the Chilean up with a rope.
Leicester's EPL title credentials on show against champions Chelsea.
If Manchester United's performance in a 4-1 rout of English champions Leicester City on Saturday is anything to go by, Wayne Rooney may struggle to get back into the starting eleven. Dropped by manager Jose Mourinho to the substitutes' bench after a series of poor performances, Rooney made a cameo appearance after he replaced Marcus Rashford in the 83rd minute. Although the club captain struck a positive note as he waved and applauded the fans as he headed down the tunnel, his role as the team's driving force is under serious threat after United thrived with Juan Mata filling his position superbly.
Southampton missed a penalty as they held a makeshift Manchester United side to a 0-0 draw in a tepid Premier League clash on Wednesday.
Chelsea striker Fernando Torres is set to face a four-match ban for a 'gouging' attack on Tottenham's Jan Vertonghen in a 1-1 draw between the two teams on Saturday.
Former Germany captain Michael Ballack's farewell match in Leipzig on Wednesday was overshadowed by the potential transfer of Andre Schuerrle to Chelsea with German media reporting a deal has been agreed.
Tottenham Hotspur have called off talks with Antonio Conte to become their new manager to replace the sacked Jose Mourinho
Real Madrid have agreed to sign Malaga's Spain Under-21 playmaker Isco on a five-year contract pending a medical.
Champions Leicester City will begin their Premier League title defence with a trip to newly promoted Hull City on August 13, according to the 2016-17 fixtures released on Wednesday.
Jose Mourinho's United will make the short trip to face the Premier League leaders Manchester City
Chelsea and Everton have been charged by the FA after Wednesday's stormy Premier League encounter.
News of all that's transpired on and off the football field
After the spectacular implosion of the Jose Mourinho regime at Chelsea, there is now just one world-beating coach left in the global game with a glittering curriculum vitae unsullied by the stain of any striking failure. Step forward then Pep Guardiola...
Chelsea were declared the "autumn champions" by coach Jose Mourinho as they maintained their unbeaten start to the season with a 2-1 win at Anfield on Saturday that kept them four points clear of Southampton at the top of the Premier League.
Chelsea pair Diego Costa and Eden Hazard were named on Thursday on the shortlist for the Professional Footballers' Association (PFA) Player of the Year award.
Pochettino picks Barcelona as favourites to win Champions League
Saturday's 2-1 FA Cup quarter-final defeat at Wolverhampton Wanderers followed a 2-0 loss at Arsenal last week.
Mourinho wants to see Pogba's World Cup focus at Man United
News of all that's transpired on and off the football field
Chelsea still have a chance of finishing in the Premier League top four and securing Champions League football at the end of the season, interim manager Guus Hiddink has said.
Wayne Rooney may not start Manchester United's Europa League match against Ukrainian side Zorya Luhansk for his own protection as he is struggling with a back injury, manager Jose Mourinho said on Wednesday.
ManchesterCity manager Pep Guardiola has expressed doubts over whether Manchester United can challenge for the Premier League title but believes they have a realistic chance of finishing in the top four.
Real Madrid midfielder Gareth Bale damaged a calf muscle in his left leg during Tuesday's 4-0 Champions League Group A victory at home to Shakhtar Donetsk, tests confirmed on Thursday.
Pogba publicly criticised United's tactics in their 1-1 home draw with Wolves at the weekend, and is reported to have annoyed Mourinho by posting an Instagram video of himself laughing in the stands during the team's League Cup defeat to Derby County on Tuesday.
Manchester United tightened their grip on second place in the Premier League
News of all that's transpired on and off the football field
Revolution is in the air at Real Madrid after their Champions League empire was razed to the ground with an astounding 4-1 loss at home to Ajax Amsterdam, with a huge clear out of players expected as well as a change of manager.
Manchester United crushed Newcastle United's hopes of a claiming a first domestic trophy for nearly 70 years with a clinical 2-0 victory in the League Cup final at Wembley on Sunday.
'Now even winning our games does not guarantee us to be in the Champions League, that is what we have to achieve'
Germany's defensive midfielder Sami Khedira has been offered to Manchester United at 2,00,000 pounds-a-week by Real Madrid, as he will be out of contract in the summer and the top Premier League clubs have been alerted about the same.
Chelsea reached the League Cup final after Branislav Ivanovic's towering extra-time header secured a 1-0 victory over Liverpool in a rip-roaring semi-final second leg at an electric Stamford Bridge on Tuesday.
Manchester United will swoop for Sweden striker Zlatan Ibrahimovic on a free transfer as new manager Jose Mourinho's first marquee signing at Old Trafford, Sky Sports has reported.