John Isner after his match against Kevin Anderson at the 2018 Wimbledon. (AP Photo)

The U.S. swing of the season is underway, and the American players are taking center stage with the US Open looming on the horizon. Leading stars such as John Isner, who made it to the semifinals of Wimbledon, and Steve Johnson, who just won Newport, will hope to bring back the glory days of American Grand Slam success. 

Both in the past and the present, many American men have made their mark on the sport. See how much you know about their achievements: