Ballack: JT's paintballing boosted Chelsea
"If you play a big game like that and you don't perform, you don't play well, everyone is a bit down and frustrated, then everyone wants to show we can play much better.
"The paintballing was arranged by JT (John Terry). It is a small part in football but sometimes during the season you have difficult moments, especially after such a defeat by Tottenham. Then you have to do something a little bit different.
"It was not the main reason for the victory at West Ham. But we wanted to do something to clean our minds and our heads."