I expected more from PSG - Mourinho

Chelsea boss Jose Mourinho says Paris St-Germain are the most aggressive side his team have faced this season.

Nemanja Matic returns from a ban but fellow midfielder John Mikel Obi is out with a knee injury for the Champions League last 16 second leg on Wednesday.

The first leg in Paris was drawn 1-1.

"This season we have played teams from the Championship, League One and League Two, but the most aggressive team was PSG. For a team with so much quality I expected more football," Mourinho said.

"I thought a team from England would never be surprised by aggression, because aggression is in our country.

"A team with fantastic players was the team making foul after the foul. [PSG] were the team that stopped Eden Hazard with fouls all the time, the team that was attacking the man in possession of the ball with two or three players very aggressively.

"If to dominate is the number of chances created, yes Paris had more chances than us. If dominating means stopping your opponent from playing, making foul after foul, yes they also dominated."

Chelsea beat PSG in last season's quarter-finals after they overturned a 3-1 deficit to win the home leg 2-0 and advance on away goals.

But on that occasion the French side were without injured Swedish striker Zlatan Ibrahimovic. This time, PSG boss Laurent Blanc thinks Gary Cahill and Kurt Zouma could struggle to contain him.

"I don't think those two players are going to be happy about facing Zlatan," Blanc said.

"He's someone who loves the big occasion. He's a player who can score at any time, in any venue, against any opponent. I hope he shows that on Wednesday night."

Prior to Mourinho's warning about PSG's aggression, Blanc has also warned his side not to confront Chelsea striker Diego Costa, whom he says "thrives" on provocation.

"He likes contact, and provokes opposition players. That's part of his game," Blanc said.

"He really needs that to bring out the best in his performances. The most important thing is to not get caught up in the way he plays.

"He will try to provoke a reaction. We need to stay calm, not get caught up in his game. We need to be as effective as possible in stopping him."

PSG players will wear black armbands for the game after eight French nationals, including three sportsmen and women, died in a helicopter crash in Argentina on Monday.