Possibly the most difficult sport in the universe. Requires patience, agility, quick reflexes, confidence, stroke skills, physical fitness, and stradigy. Tennis courts are true war zones and are not just two people with rackets. Only real men play tennis.
Tennis requires a lot more than other sports, the most difficult aspect is that its 70% mental. Sure, pussy football players can tackle. But, what happens when you face off a bear and Einstein with a rifle.