Del Potro advances to 2nd round at French Open

Juan Martin del Potro needed four sets and more than three hours

to beat big server Ivo Karlovic 6-7 (7), 6-3, 7-5, 6-4 in the first

round of the French Open on Monday.

The 25th-seeded Del Potro was a semifinalist at Roland Garros in

2009 – the year he won the U.S. Open – but didn’t compete at the

tournament last year after undergoing wrist surgery.

The right-handed Argentine made the most of Karlovic’s 42

unforced errors and will next play Blaz Kavcic of Slovenia. He

could then face tournament co-favorite Novak Djokovic in the third