ST. PETERSBURG, Fla. (AP) " Serena Williams will miss the season-ending WTA Finals for the second year in a row, citing a right shoulder injury.
The WTA announced Williams' withdrawal from the tournament a week before play begins next Sunday in Singapore, releasing a video from the 22-time Grand Slam singles champion.
Williams says she is "really, really bummed" to skip the event, but adds that her doctor "insists that I stay home and heal" her shoulder.
Adds the 35-year-old American: "It's been a really tough year for me."
She hasn't played since losing to Karolina Pliskova in the U.S. Open semifinals in early September, a defeat that resulted in Williams ceding the No. 1 ranking to Angelique Kerber after a 3-year stay at the top.
Williams played in only eight tournaments in 2016, winning two of them, including Wimbledon in July.
This story has been automatically published from the Associated Press wire which uses US spellings