Paris Saint-Germain star Lucas Moura claims that Willian will represent Chelsea's main threat in the Champions League encounter, but the French club can't afford to ignore the likes of Eden Hazard and Pedro.
The Paris giants will play the West Londoners in the second leg of the last-16 tie at Stamford Bridge on Wednesday night with PSG holding a 2-1 lead from the initial bout at Parc des Princes last month.
When asked if fellow Brazilian Willian will be Chelsea's main threat, Moura said: "Of course!
"In my opinion he's Chelsea's best player right now. He's really very strong.
"We'll need to watch out for him, but he isn't the only player capable of making the difference. I'm thinking of (Eden)Hazard or Pedro… They're great players. We'll need to watch out for everyone."