Joe Cole has claimed Chelsea's Champions League win over Borussia Dortmund could prove to be 'pivotal' in their development.
The Blues progressed to the last eight of the competition on Tuesday after beating the German side 2-0 at Stamford Bridge.
Raheem Sterling opened the scoring in the first-half, before Kai Havertz scored the winner from the spot after re-taking a kick that had first hit the post.
It meant the tie ended 2-1 on aggregate, with the passion from the Chelsea players, fans and coaching staff clear to see after the game.