Usually, it's the heat, not a second round opponent, that gets to a seeded player in the Australian Open tennis championships.
As for men's defending champion Roger Federer, his second round opponent has given him trouble in the past. Gilles Simon of France defeated the second-seeded Federer in their two previous meetings.
Wednesday, Simon gave the world's former top-ranked player all he could handle. Tied at two sets apiece in the fifth set, Federer finally broke Simon in the sixth game and prevailed, 6-2, 6-3, 4-6, 4-6, 6-3.
High temperatures, which have played a major role in past Australian Opens, has not been a factor so far. While torrential rains have inundated parts of eastern Australia, the current summer weather pattern has kept the heat down.