Nadal, 36, won the quarter-final match on Wednesday in a five-set win over American Taylor Fritz. During the match he required a medical timeout to take anti-inflammatories, and his father Sebastian was seen from the stands appearing to gesture for Nadal to retire.The decision comes a day after his wife Mery Perello showed up to support her husband and showcased her sweet baby bump as she did so.The glamorous brunette wore her dark curls loose and modeled a gray T-shirt with the words "Kiss me again" around the collar along with a black leather jacket with sunglasses.She appeared to manage to remain calm despite the ups and downs of the match, which was decided after five tightly-contested sets.