Master this Tennis Coup: Solving the Grand ___ Crossword Clue

The answer to the crossword question “Grand ___ (tennis coup) is SLAM” is Slam. In tennis, a Grand Slam refers to winning all four major tournaments in a calendar year: Australian Open, French Open, Wimbledon, and US Open. Winning any one of these tournaments is also referred to as a Slam. The term Slam is used to reflect the achievement of hitting the ball so hard that it can’t be returned by the opponent. Therefore, in the context of tennis, a Slam is a powerful tennis coup that refers to an excellent shot.