http://news.bbc.co.uk/sport1/hi/tennis/6162937.stm McEnroe loses Rios grudge match John McEnroe failed to overcome a 17-year age gap as he lost to Marcelo Rios in the quarter-finals of the Masters at the Royal Albert Hall. McEnroe, 47, had suggested Rios was too young to even play in the event before the 30-year-old beat him 6-3 6-2. The American veteran said afterwards: "He says he can't play on the tour but I didn't see too much evidence of that. "Marcelo's a great player. I wasn't playing bad and had some chances but it was a tough draw to play Marcelo." With a tough schedule of three matches in less than 48 hours, McEnroe also admitted his playing days could be numbered. "At this stage the door unlocking its way to further pastures beyond tennis is getting a little bit wider," he added. Before the match, McEnroe questioned playing Rios, accusing the tour organisers of "*******ising the whole thing" by scrapping the original age limit of 35. But Rios, two years younger than Britain's Tim Henman who still plays on the main ATP tour, insisted: "I would love to come back but my body refuses to play the whole year. "That's the reason I'm not playing but I'd still love to come to places like this and play guys like John McEnroe and Goran Ivanisevic."