One of the major reasons that people work on their physical fitness is the importance that general fitness has in terms of performing well in sport. Someone can be technically gifted in a sport – skilled at passing a football, able to hit an excellent forehand in tennis or have superb accuracy when shooting a basketball. But when you lack the core fitness that professionals have, the technical ability is not enough.
Increasing your core fitness and strength will allow you to better showcase your sporting ability. If your tennis shots are particularly good, then adding strength in your core region (of which the abdominal muscles are a key part) will enable you to play those shots more often and more consistently. It will also allow you to put more power into shots and running.
The amount of work that you do to maintain fitness is reflected in the results that you get on the sporting field. There are players, and indeed even teams, who are well-known for being prodigiously skilful in short bursts, and starting matches particularly well, yet end up losing more often than not because they don’t have the ability to finish as well as they start.
If you build better abs, you will find that the final few minutes of the match go a lot better for you. You will be better able to maintain concentration because you will not be so tired. You will have better posture when it comes to taking a shot because your core strength allows you to stand upright. Better core strength makes you a better athlete.