Former champion Serena Williams withdraws from Madrid Open
Former world number one Serena Williams has withdrawn from the Madrid Open as she continues to regain full fitness ahead of the French Open later this month, the tournament's organisers said on Thursday.
Serena Williams of the United States shows her dejection against Naomi Osaka of Japan in their first round match during the Miami Open Presented by Itau at Crandon Park Tennis Center on March 21, 2018 in Key Biscayne, Florida
The 36-year-old, who won the Madrid Open in 2012 and 2013, returned to the WTA tour in March after giving birth to her first child last September.
Williams, a 23-times grand slam singles champion, was ousted by her sister Venus in her comeback tournament at Indian Wells and last played in her first round defeat by Japan's Naomi Osaka at the Miami Open.
Serena Williams will continue to train as she attempts to work herself back into top shape (Adam Davy/PA)