Frank Lampard confirmed Ross Barkley was Chelsea’s designated penalty-taker despite the on-field argument that preceded his crucial miss against Valencia.
The Blues, trailing 1-0 to a goal from Valencia winger Rodrigo, were given a lifeline in the closing stages when VAR flagged up a handball in the area.
Barkley, on as a substitute seven minutes earlier, assumed responsibility for the penalty but only after some heated debate with team-mates Jorginho and Willian.
But new boss Albert Celades had predicted they would not play like a team on the verge of mutiny, and he was proved right.
Celades said: “Obviously we are delighted. It’s very difficult to come here and get a win against a good side with great players.
“We did a good job. The players are happy. Let’s hope we can just speak about football from here on in.”