This video shows beautiful moment of Juan Martín del Potro vs Marin Cilic .This is the reason why people love Juan Martin del Potro. Watch his reaction! Tennis is a famous racket sport that can always be played individually versus a single opponent or also between 2 teams of 2 players each . Each Tennis player uses a special tennis racket . Tennis rackets are strung with cord to strike a hollow rubber ball . The object of a tennis game is to play the Tennis ball in a way which the other player is not able to play a correct return. The tennis player who is not able to return the tennis ball will not get a point, while the other player will. What a great moment. What a Emotional moment. This is the best moment of the match between Juan Martin del Potro vs Marin Cilic at Davis Cup 2016.