Callum Hudson-Odoi believes Monday night's win over West Ham United was "crucial" for their top-four bid.
Thanks to a double from Eden Hazard, the Blues capitalised on Manchester United and Arsenal losing to find themselves back in the top-four.
And young winger Hudson-Odoi thinks the result could change Chelsea's season.
"I think today's three points were crucial. A couple of other teams dropped points and we needed to get the win, and we did it in the right manner I think," he said.
"Our mentality was strong, we had to work hard during the game, and we had to stay patient and compact. We had to just keep getting the ball, keep moving it and thankfully we got the two goals."