New-season optimism may be offset by old concerns for champions Manchester United and FA Cup holders Chelsea when they meet in the curtain-raising Community Shield.
City completed the treble of Champions League, Premier League and FA Cup titles, matching Manchester United's feat in 1999 and drawing comparisons with Guardiola's 2008-09 Barcelona team.
Arsenal captain Mikel Arteta has signed a one-year contract extension, the Premier League club announced on Wednesday.
Robin van Persie struck twice to earn Manchester United a 2-0 win over Wigan Athletic in the English season's curtain-raising Community Shield at a sun-drenched Wembley on Sunday.
Arsenal forward Theo Walcott and Spanish midfielder Santi Cazorla have signed new contracts with the Gunners, the Premier League club said on Friday.
Jose Mourinho has accused Manchester United's Premier League rivals of playing a "defensive game" ahead of the coming campaign but is making no secret of his side's own title aspirations.
Manchester United will soon be "winning in style" again courtesy of their never-say-die attitude on the pitch, midfielder Juan Mata has said ahead of Saturday's FA Cup final against Crystal Palace at Wembley. Louis van Gaal's men, who finished fifth in the Premier League this campaign, failed to qualify for the Champions League for a second time in three seasons and hope to win their first trophy since taking home the Community Shield in 2013. The club's three-year barren run has coincided with the retirement of manager Alex Ferguson, who led the club to 13 Premier League title, five FA Cup and two Champions Leagues during his 26 years at the helm. "This club is going to be fighting for titles," Mata told the BBC.
The new managers of Manchester United and Manchester City will face an early confrontation when the teams meet in a friendly in Beijing on July 25. Jose Mourinho, officially confirmed as United boss on Friday, and old adversary Pep Guardiola, who is replacing Manuel Pellegrini at City, will renew hostilities in the pre-season International Champions Cup. There was little love lost between the pair when Mourinho was in charge at Real Madrid and Guardiola led Barcelona. The rivalry is likely to be just as fierce when United attempt to make up ground on their neighbours, who have finished above them in the Premier League for the past three seasons.
Arsenal manager Mikel Arteta continues rebuilding the side around goal machine Pierre-Emerick Aubameyang and younger talents like Bukayo Saka.
Manchester City's target this season will be to match Manchester United's record of three successive Premier League titles
The Community Shield showpiece at Wembley will be the 14th time Arsene Wenger and Jose Mourinho have locked horns in opposing dugouts and Wenger is still waiting to get one over the Portuguese.
As the black-tinted sports cars carrying Manchester United's millionaire footballers rolled into the club's Carrington complex for the start of pre-season training on Wednesday, no one wound down any windows to discuss the start of life under Jose Mourinho. But there was surely only one topic of conversation when the players began the hard task of proving to the new manager on the pitch that they can forge the sort of future he outlined so eloquently at his news conference the previous day.
Chelsea coach Maurizio Sarri wants to keep Belgian forward Eden Hazard at the Premier League club and improve him as a player.
Liverpool will cover most miles of any Premier League club in pre-season preparation.
Sacked Chelsea manager Jose Mourinho will not be taking a sabbatical and remains proud of his two spells in charge at the west London club, a statement released by his sports management representatives said on Saturday.
Chelsea manager Jose Mourinho feels it will be more difficult for his side to retain the Premier League title with the other contenders having made strong additions to their squads.
Goalkeeper Petr Cech believes Arsenal are ready to clear the final hurdle needed to end the Premier League title drought, and said he was overwhelmed by the support he has received from fans and teammates at his new club.
LeicesterCity manager Claudio Ranieri says it will be "amazing" to walk onto the pitch as a league champion on Sunday at Chelsea, the club that sacked him 12 years ago.
Former Brazil international Kaka made the most of his first appearance in the Major League Soccer All-Star Game as he helped lead his team past English Premier League side Tottenham Hotspur 2-1 on Wednesday.
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'For the Premier League, it would be great having the best player in the world in the league. I'm not sure the Premier League needs a boost but it would be.'
Jose Mourinho has dropped a heavy hint that Paul Pogba's protracted transfer from Juventus to Manchester United is close to completion.
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Jose Mourinho was delighted that Manchester United were on the brink of signing France midfielder Paul Pogba from Serie A champions Juventus, the Portuguese coach said on Sunday.
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Jose Mourinho has won a trophy every season of his top flight career and finds it "unacceptable" to contemplate finishing his comeback season with Chelsea empty handed.
Factbox on Jose Mourinho, who was named manager of Tottenham Hotspur on Wednesday
Manchester United striker Romelu Lukaku defended Jose Mourinho's confrontational style of management, saying that the Portuguese deserves respect for not hiding his true feelings like several Premier League bosses.
Chelsea have signed Germany's highly-rated attacking midfielder Kai Havertz from Bundesliga side Bayer Leverkusen on a five-year contract, the Premier League club announced on Friday.
The Premier League season is only a week old and the problems are already piling up for misfiring champions Chelsea after a 3-0 thrashing at Manchester City on Sunday.
The league said last week that the deal, called 'Boost La Liga', would strengthen its clubs and give them funds to spend on new infrastructure and modernisation projects as well as increasing how much they could spend on players' salaries.
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Chelsea's 2-1 defeat at surprise league leaders Leicester City on Monday, their ninth loss in 16 league games since the start of a season that has gone spectacularly wrong, proved to be the final straw.
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The destination of the Premier League trophy will not be decided when current champions Chelsea meet their immediate predecessors Manchester City.
Manchester United are satisfied with their transfer business and under no pressure to sign a fourth player in the current window, manager Jose Mourinho said.