(CNN) -- Defending champion Rafael Nadal has been passed fit to take on American Mardy Fish in the Wimbledon men's singles quarterfinals on Wednesday. Top seed Nadal was a doubt to face Fish after being troubled with an injury to his left foot during Monday's last 16 win over Juan Martin del Potro. However, the 25-year-old has now been given the all-clear to play after scans revealed the injury was not serious. Nadal posted a message to his fans on his Facebook page, saying: "After the match I went to take an MRI at a London hospital. "During the match I thought I had something serious -- but as the match went on the pain got better and thankfully the tests don't show an injury.
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Rafael Nadal is fit to face Mardy Fish in Wednesday's Wimbledon men's quarterfinals
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Nadal suffered a foot injury during his last 16 victory over Juan Martin del Potro
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But a scan on his foot revealed the injury was not as bad as first feared
Juan Martin del Potro
Juan Martin del Potro
Nadal's message is in stark contrast to his mood after defeating @placeholder in a hard-fought four-hour marathon played in blistering conditions.