Rafael Nadal's ailing left knee may still bother him for a few more weeks, his coach said Monday.
Nadal practiced for 90 minutes with Nicolas Massu of Chile on Monday, his fourth straight day of training since arriving in the country for his first match in more than seven months.
Nadal opens up Tuesday in the VTR Open, playing doubles with Argentina's Juan Monaco. On Wednesday, he will play singles in the second round.
''The knee is much better, but they've told us he will feel some discomfort and lack of mobility until the end of the month,'' said Toni Nadal, the seven-time French Open champion's coach and uncle. ''But it's definitely getting better.''
Nadal has avoided surgery so far, getting therapy in hopes of speeding the healing. But the slow recovery from the inflamed knee means Nadal has been trying to lower expectations as he uses three Latin American clay-court tournaments to prepare for a run at an eighth French Open title.
Nadal will be watched closely in doubles Tu...