Christian Pulisic has urged his Chelsea teammates to put a tough patch of form behind them and rediscover their winning streak.
The Blues were stunned on Saturday as West Ham left Stamford Bridge with a 1-0 win courtesy of Aaron Cresswell's strike, with the home side lacking the clinical touch up front with Olivier Giroud misfiring in place of the injured Tammy Abraham.
Chelsea remain hopeful Abraham - who has scored ten league goals this season - will recover in time for the game against Aston Villa on Wednesday and Pulisic says now is the right time to put their three-game winless run behind them and start stringing results together again.
He said, as quoted by the Daily Mail: "Tough times really test your character.
"It was a pretty crazy game midweek [Valencia] and then coming here we really wanted a good result, we came out with a lot of energy and did some things well but we just didn't have that finishing touch. It felt like a little something was missing.
"In the season, that is what happens, there are ups and downs. We have had a few months now where people have said how well we've done and how everything has been going great, and I wish it would stay like that the whole year but it's not the case, so now a couple of tougher results and we just have to go try and turn it around."
Pulisic himself has enjoyed a great run of goalscoring, netting six times in his last eight games, including a hat trick at Burnley, but he and his fellow Chelsea attackers failed to make the desired impact during the defeat to West Ham.