Chelsea ace Frank Lampard admits there's been tension between senior teammates John Terry and Didier Drogba.
The pair are said to have clashed in the aftermath of Chelsea's thumping defeat by Arsenal.
Lampard said: "If you aren't winning games there would be something wrong if the big players didn't start asking questions of each other and themselves.
"Drogba is known as an emotional character and John as well. Ideally it should be done in the dressing-room, but when you want to win it can come out on the pitch."
