Williams sisters to team up in doubles at French Open

Two-time French Open doubles champions Serena Williams and Venus Williams will compete as a wild-card entry at Roland Garros.

The American sisters, who won here together in 1999 and in 2010, have not played doubles together at a major since they won Wimbledon two years ago.

Both sisters are also expected to compete in singles. The clay-court Grand Slam tournament starts on Sunday.

The French Open will mark Serena's first major tournament in more than a year. 

She hasn't played at a Grand Slam event since winning the Australian Open in January 2017.