Chelsea boss Thomas Tuchel expects an aggressive and attacking Lille tonight.
Chelsea go into the second-leg of their Champions League round 16 clash with a 2-0 aggregate lead.
Tuchel said: "To be honest, I think Lille played well here at Stamford Bridge.
"They were very physical. They attacked high up the pitch, it was impressive. They had a good pressing game, they were very brave and had the mentality that they had nothing to lose and we expect the same thing today. I know the stadium well and the atmosphere that the fans create.
"They will want to win and have nothing to lose and I know they like being in these situations.
"They'll give everything to put the pressure on us and ask questions of us. They will play an attacking 4-4-2 that's very fluid, aggressive and direct. We will have to be ready for that but we're also confident in ourselves.
"It's half-time right now. No match is decided by a 2-0 scoreline. We'll have to turn in another top performance. Lille played on Friday evening so they've had a good amount of time to recover. That's why we have to be ready physically and mentally for a tough game."