Given the chance to level the tie at Stamford Bridge, Barkley saw his effort come off the bar.
Before then, the former Everton man was caught on camera, telling team-mates Jorginho and Willian to back off.
But Christensen now believes that Barkley is going to take the next penalty for Chelsea going forward.
“We know Ross, he is going to take the next one as well, he always feels confident with penalties, he is one of the best ones which is why he was on the penalty today,” Christensen was quoted by Chelsea’s official website as saying after the match.
He added: “We felt we were on top for most of the game. Valencia had some spells but we knew that was going to happen and we were ready for it. We kept working. Our work ethic was good all game and it felt we controlled most of it which is why it is tough to accept the goal against and the result in the end.
“We are not happy to let goals in from those situations and we know it can be costly, but now we look forward to the next game.”
