Rafael Nadal returns to training for first time as Spaniard continues knee recuperation in Majorca The 11-times grand slam winner, who has not competed since being stunned by Czech Lukas Rosol in the second round at Wimbledon in June, completed a session under the supervision of coach and uncle Toni Nadal at an indoor facility in his home town of Manacor in Majorca. The Spaniard, whose athletic, aggressive playing style places huge demands on his muscles and joints, has been sidelined several times by knee problems during his 11-year career. As well as the US Open, which he won in 2010 and lost to Novak Djokovic in last year's final, Nadal missed the season-ending Tour Finals and Spain's Davis Cup final defeat to Czech Republic at the weekend. His absence deprived tennis's "big four" of Nadal, Djokovic, Roger Federer and Andy Murray of one of its most competitive and successful members for the second half of the season. Nadal had played some of his best tennis in the first six months of 2012, losing narrowly to Djokovic in the final of the Australian Open and winning a record seventh Roland Garros title on his favoured clay.