WHO? LU!

Yen-hsun Lu had barely walked off the court at Melbourne Park on Wednesday after one of his biggest career wins when his mobile phone started ringing.

Lu, whose previous biggest win was a first-round upset of Britain’s Andy Murray at last year’s Beijing Olympics, pulled off a marathon upset of 10th-seeded David Nalbandian in the second round at the Australian Open.

Lu beat the 2002 Wimbledon finalist 6-4, 5-7, 4-6, 6-4, 6-2 in a match just short of four hours, marking the first time in 12 Grand Slams that the 25-year-old Lu has advanced past the second round.

Lu persevered through a 10-minute final game when he fought off six break points, but he had a strategy—reverse psychology.

“Everybody knows Nalbandian is one of the best backhand players,” Lu said. “So I thought he’s ready for a forehand return. So I just changed my mind and went to his backhand all the time.

“I served six times to his backhand on break point and I won all the points.”