While Novak Djokovic struggles, Rafael Nadal keeps impressing.
Djokovic lost again on Wednesday, this time falling to 140th-ranked Martin Klizan 6-2, 1-6, 6-3 in the second round of the Barcelona Open.
Nadal, meanwhile, won again. He beat Roberto Carballes Baena 6-4, 6-4 for his 10th win in 11 ATP Tour matches this season.
Djokovic is trying to return to form after a lingering right elbow injury. He hasn't made it past the last 16 in five tournaments this year.
The 12th-ranked Serb got off to a slow start against Klizan but rebounded to force a third set. He was then broken while trailing 4-3, allowing the Slovak to serve out for the victory.
“It's a great...