Marcos Alonso said he was delighted to score the winner against Manchester City after enduring a "tough season" at Chelsea.
City missed the chance to wrap up the Premier League title after losing 2-1 to Chelsea at Etihad Stadium in a dress rehearsal for this month's Champions League final.
Raheem Sterling's opener was cancelled out by a fine Hakim Ziyech volley before Alonso sealed all three points for the Blues with a stoppage-time strike, and he outlined his ambition to nail down a spot in Thomas Tuchel's line-up after the game.