Sparta midfielder Lukáš Vácha after the first leg: How did the Chelsea stars behave off the pitch, in the tunnel or by the dressing rooms? For example, I played against Mata for the second time, we met before while playing for the U-21 national teams. He recognized me, came to me and shook my hand. However, Mata, Hazard or even Lampard were doing something interesting during the game. When they are getting closer to the opponent from behind, they start doing a very quick sound - tss tss. I have no idea why. Maybe to disturb the opponent player, to get him nervous, I really don't know. In fact, Theo Gebre Selassie had told me that in the Spanish national team, every single player does that.