Spain's Rafael Nadal receives a towel from a ballboy as he walks on court during his men's singles match against Czech Republic's Tomas Berdych on day nine of the 2015 Australian Open tennis tournament in Melbourne on January 27, 2015. AFP PHOTO / PAUL CROCK-- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE        (Photo credit should read PAUL CROCK/AFP via Getty Images)