Ronaldo suffered a hamstring strain in victory over Villarreal.
With Madrid fans worried about his condition, Ronaldo posted a picture with the message "all good, thanks for your support" on his Instagram account.
Real Madrid have still yet to issue an official communique relating to the results from the tests carried out on the Portuguese striker this morning but early indications suggest he will sit out Saturday's game at Rayo Vallecano but be available to play next Tuesday as Madrid face Manchester City in first leg of the Champions League semi-final.
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