WASHINGTON — After Venus Williams' four-matches-in-four-days return to professional tennis was over, after she was loudly feted by appreciative fans even after a loss in singles, the D.C. Open stadium announcer offered a thought: “We’re never going to say goodbye to Venus Williams, are we?” he said.

MASON, Ohio — Venus Williams’ return to professional tennis will not just be a one-tournament visit: She was awarded a wild-card entry for the Cincinnati Open. The 45-year-old Williams is participating in her first event in more than a year at the DC Open and won first-round matches in both singles and doubles.

Venus Williams, won her first singles match in more than a year at age 45, has highlighted the phenomenon of older athletes playing at an elite level.