Even at age 45, even after two years away from Grand Slam tennis, Venus Williams displayed some big serves and powerful groundstrokes at the U.S. Open on Monday night in front of a supportive crowd at Arthur Ashe Stadium,

Venus Williams is back on the professional tennis tour at age 45 and will be returning to the U.S. Open next week for her first Grand Slam competition in two years.

Venus Williams made an inspiring return to tennis this summer after not competing much in the past two seasons. The 45-year-old tennis legend first returned at the Citi Open in July and won her first match in nearly two years. She then played in the Cincinnati Open and the U.S. Open, losing in the first rounds of both tournaments.