Vladimir Coufal insists West Ham United still have room to improve.
The Hammers are sitting in fourth on the Premier League with 13 games left in the season.
Speaking to the club's website said after the win over Tottenham last weekend, right-back Coufal said: "We should be careful calling this a 'fantastic performance' because we always have a lot of room to improve in all aspects of the game, mainly keeping the ball," he told West Ham TV. "But it was a tough game and Tottenham has really, really good players and of course we appreciate this win.
"Our work was to stay tight and, as I said, Tottenham has really good players like Bale, Kane and Son, so it's really difficult to keep the ball against players like them. We have to take three points and improve in the next game."
"That next game could not be more difficult on paper, as West Ham travel to runaway leaders Manchester City on Saturday.
"And while they will be doing everything they can to stop City making it 19 wins in a row in all competitions at Etihad Stadium, the No5 believes the Londoners can learn from the way Pep Guardiola's men play in possession if they are to improve their own levels of performance.
"We have enough quality with the ball, but we have to be braver when we go on the attack," he observed. "Sometimes we have to be more relaxed and calmer with the ball and we are working in every training session on this aspect of the game and I hope by the end of the season we are playing like Manchester City!
"It will be a very tough game at City this weekend, but we will try to get some points. We will do everything to improve our chances, but we will see."
