Novak Djokovic has won the first three of the four major tournaments of 2021 \u2013 The Australian Open, the French Open and Wimbledon. He\u2019s going for the Grand Slam, all four wins in a calendar year including the U.S. Open in New York, where Djokovic advanced to the semifinal late Wednesday. The last to do the grand Slam was Steffi Graf in 1988. The last man to do it was Rod Laver in 1969.\u00a0 Djokovic, Rafael Nadal and Roger Federer are tied for the open-era men\u2019s record of major wins, with 20 each.\u00a0 Federer, Nadal and U.S. Open 2020 champion Dominic Thiem are all out of the U.S. Open with injuries.\u00a0 Starting with Federer\u2019s Wimbledon win in 2003, there have been 72 majors; only 12 have been won by someone other than the Big Three. The last American man to win a major championship was Andy Roddick at the U.S. Open in 2003. Nadal has won 13 times at the French Open and has won the Australian Open just once. Federer has won Wimbledon eight times and the French Open just once. Djokovic was the only one of the three to hold all four titles at the same time, in 2015-16 but it wasn\u2019t a \u201ccalendar year\u201d Grand Slam. Nadal\u2019s best year: 2010 \u201csurface slam,\u201d won three majors on hard court, grass and clay. Federer\u2019s best year: 2006, won three majors, lost in French Open final to Nadal. Djokovic\u2019s best year: 2021; and in 2015, he won three majors, losing in the French Open final after beating Nadal.