Pep Guardiola says Manchester City could not afford Harry Maguire and believes the defender can help rivals Manchester United mount a Premier League title challenge.
United finished 32 points adrift of champions City last season but Guardiola expects Ole Gunnar Solskjaer's side to close the gap and be one of "many, many contenders" this term.
"Maguire is an excellent, top-class player," said the City boss after beating Liverpool on penalties to lift the Community Shield. "We were interested but we could not afford it. United afforded it.
"He's an excellent player, he made an incredible World Cup (in 2018), he's strong in the air, good with the ball in the build-up and he's so fast.
"Congratulations for United for this signing.
"I think with United, Arsenal, Chelsea, and Tottenham . . . there will be many, many contenders this time."