of Germany will be aiming to make a good comeback from injury and be back to near the top of the ATP tour.
The German reached a career high of number 2 in the world a few years ago and at his best he can beat anyone in the world.
Last year Haas was 2 sets to love up in the French Opein in Paris in the 4th round against the then world number 1 Roger Federer but Federer came back to win the match in 5 sets and he went on to win the title for the 1st time in his career.
Federer would also beat Haas in the Semi Finals of Wimbledon last year on his way to his 6th title.
This year however Rafael Nadal is the world number 1 and he has won the French Open, Wimbledon and he completed the career Grand Slam by winning the US Open.