Manchester City manager Pep Guardiola admitted his side cannot lose games in the manner it did in going down 1-0 at Southampton on Sunday if it is to take the Premier League title back from Liverpool next season.

City lost for the ninth time in the league this season as Che Adams' spectacular first Southampton goal condemned Guardiola's men to defeat despite enjoying 74 percent possession and 26 shots at goal.

"We played really well, but it was a little bit the run of this season. We make one mistake, they punish us," said Guardiola.

"We lost a lot of games and losing a lot of games you cannot compete to win Premier Leagues. We need to improve because it happened many times this season."

Just four days ago City showed what it is capable of by thrashing newly crowned champion Liverpool 4-0.

But defeat on England's south coast sees the Reds regain their 23-point lead at the top of the table.

Guardiola, though, insisted his plan to get back on top does not involve a summer spending spree on new players.

"No, I don't think so," added the Catalan when asked if new signings were the key to a change in fortunes.

"I think we played good. The desire, the character to play until the end was there, we put Southampton with 10 players in the penalty spot, so we did really well.

"When you review the games and the chances we created you cannot do more. I like the way we played but it is not enough."

Adams has endured a nightmare run in front of goal since a $18.7 million move from Birmingham City a year ago.

But on his 30th appearance for Southampton, he caught City goalkeeper Ederson stranded well outside his area from 40 yards out.

Guardiola had made six changes from the rout over Liverpool with Kevin De Bruyne among those dropping to the bench.

Even without the brilliant Belgian, City still created enough chances to win comfortably but was only denied by some inspired goalkeeping by Alex McCarthy and wayward finishing.

Gabriel Jesus has failed to take his chance in the absence of the injured Sergio Aguero in recent weeks and blazed over with the goal gaping from Joao Cancelo's cross before Fernandinho struck the post and McCarthy made the first of a string of saves from David Silva's powerful header.

City continued to dominate after the break as McCarthy spread himself brilliantly to save from David Silva before Bernardo Silva's goal-bound effort was deflected wide.

Agence France-Presse