Paris Saint-Germain lost four key players to injury in their 2-2 tie on Saturday against Caen.

Laurent Blanc confirmed that Yohan Cabaye, Marquinhos, Serge Aurier and Lucas Moura will all miss out against Chelsea in the Champions League this week after picking up injuries.

Cabaye was forced off with a groin injury in the 16th minute, while Marquinhos was replaced at halftime with a hamstring concern.

"It's a big blow for us but we have to cope with it. It's the first time I've ever experienced such an extraordinary scenario," Blanc said. "When you make your first two changes in the first 45 minutes, it's hard to judge when to make the third."