Potro d. Johnson

Potro beat Johnson 7-6(5), 6-3, 6-2 in the second round at the U.S. Open - New York. Potro won 99 of 172 points (58%). Potro hit 15 aces to 4 and won 85% of points behind the first serve (50/59) against 69% for Johnson. Potro converted 4 of 10 break points and saved 3 of 4 faced; Johnson converted 1 of 4. Winners to unforced errors: 33–23 for Potro, 24–35 for Johnson. The match was played on hard in United States.