Karlovic is out

After winning the much-hyped battle of the men's tennis giants on Tuesday night, 6-foot-10 Ivo Karlovic was knocked out of the men's singles draw with a 7-6, 4-6, 6-2 loss to qualifier Luka Gregorc on Wednesday.

Gregorc won 56 percent of the points on Karlovic's second serve to upset the second-seeded Karlovic. Karlovic had beaten 6-9 John Isner on Tuesday night to advance to the third round.

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