By Aditi Prakash, Reuters
Published: 13:47 BST, 3 May 2018 | Updated: 13:47 BST, 3 May 2018
Former world number one Serena Williams has withdrawn from the Madrid Open as she continues to regain full fitness ahead of the French Open later this month, the tournament's organisers said on Thursday.
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-time Grand Slam