Roger Federer hit two amazing backhand passing shots winners against Hyeon Chung in the night session's match on Thursday in Indian Wells. The Swiss, who prevailed by 7-5 6-1, said: "That was a tough match - Chung is a tough return player. I saw him (Sampras)... it's great that he came. It's nice to see him in the building... He doesn't come to tennis much. It was wonderful to see Rod too.'