Rafael Nadal concerned about knee
MONACO -- Rafael Nadal is fretting over his troublesome left knee as he attempts to win his eighth straight Monte Carlo Masters and end a title drought dating to last year's French Open.
Nadal pulled out of his semifinal against Andy Murray at last month's Sony Ericsson Open. He then received treatment for a knee tendon problem after having already skipped a chunk of the season to rest his knees following the Australian Open.
"It's OK now. (I need) time to see how it is at the top ...
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