Basel, the tennis king, was the undisputed ruler of the tennis world. Basel won every youth championships when he was young. He became a professional tennis player at the age of seventeen. It took him six years to become number one. In the following seven or eight years, besides periods where he was injured, he had never been ousted from the throne. He was the champion of dozens of Grand Slams, as well as nearly a hundred world championships. All of this demonstrated Basel's dominance in the tennis world.
Dai Li could guess without using his detector that such a player was definitely an S+ level talent with a personal ability value of 950 or more. Otherwise, he wouldn't be able to rule over the tennis world.
