Costa scored his tenth goal of the league season to give Chelsea a 2–1 win away to Liverpool on 8 November, preserving their unbeaten start to the campaign. In January, Costa was charged by the FA in relation to a stamp on Emre Can during Chelsea's win over Liverpool in the League Cup semi-finals, and was given a three-match ban. Costa won his first trophy for Chelsea on 1 March, as they defeated Tottenham Hotspur 2–0 to win the League Cup at Wembley Stadium; he scored the second goal of the game.