Fifth sets should be replaced by 10-point tiebreaker in Grand Slams: John McEnroe.

Marathon best-of-five-set matches have had their day and shorter formats should be introduced to Grand Slam tournaments, said seven-time major winner John McEnroe.

Men’s singles matches in the four Slams are still the first to three sets, although tiebreaks have now been introduced to shorten fifth sets at Wimbledon and the Australian Open, along with the U.S. Open which made the move 50 years ago.

McEnroe believes that with so much choice for television viewers these days, matches lasting five hours or more could turn fans off the sport. The American believes a championship tiebreak (played to 10) should replace a fifth set.