 Late in the second half of extra time, the ball was put out of play so players could be treated for cramp.In returning the ball to Chelsea, Carlos Tevez put it out for another throw-in deep in Chelsea's half then signalled to his teammates to put pressure on the restart.John Terry and Michael Ballack reacted angrily to this and were joined by several of their teammates, while Manchester United's players rushed in to protect Tevez.