Chelsea boss Rafa Benitez has no problem over his players rowing with eachother. Benitez has encouraged his players to carry on arguing after Frank Lampard and David Luiz rowed during Chelsea's 3-2 loss to Rubin Kazan that saw them squeeze into the Europa League last four.

He said: "It's always good to have players arguing about things that happen on the pitch, so you can correct these things at half-time. We were talking about that, adjusting positions, so it's fine."