Antonio Conte says Chelsea must keep fighting for a Champions League place until the end of the season, having closed the gap to fourth-placed Tottenham to five points.
The Blues have struggled to keep place with the Premier League's top four in recent weeks, but they started to make up ground on Spurs as they beat Burnley on Thursday – 48 hours after Mauricio Pochettino's men were held by Brighton and Hove Albion.
And while Conte acknowledges it will be difficult to catch their London rivals, he insists there remains "the possibility".
"There is a gap between us and Tottenham – we are talking about five points and there are four games to go," he said ahead of facing Southampton, who they beat 3-2 in the Premier League last weekend, in the FA Cup semi-finals.
"It won't be easy.
"You depend on the other results and, at the same time, you have to try to get three points in every game.