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Theodoriu is the middle name of Ilie Năstase, a prominent Romanian tennis player and former world No. 1. He achieved great success in the sport, winning numerous prestigious tournaments, including the French Open in 1973 and the US Open in 1972. Năstase is widely regarded as one of the greatest tennis players of all time, known for his exceptional talent, flamboyant personality, and significant impact on the sport.