Supporters cheer Jerzy Janowicz of Poland (not pictured) following his victory over Pablo Andujar of Spain in their men's singles second round match on day three of the 2014 Australian Open tennis tournament in Melbourne on January 15, 2014. AFP PHOTO / SAEED KHAN IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE

Supporters cheer for Jerzy Janowicz of Poland after his victory over Pablo Andujar of Spain in their men's singles second round match on day three of the 2014 Australian Open tennis tournament in Melbourne on January 15, 2014. AFP PHOTO / SAEED KHAN IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE

Jerzy Janowicz of Poland his a return against Pablo Andujar of Spain in their men's singles second round match on day three of the 2014 Australian Open tennis tournament in Melbourne on January 15, 2014. AFP PHOTO / SAEED KHAN IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE

Jerzy Janowicz of Poland gets up from a trainer during a break against Pablo Andujar of Spain in their men's singles second round match on day three of the 2014 Australian Open tennis tournament in Melbourne on January 15, 2014. AFP PHOTO / SAEED KHAN IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE

Jerzy Janowicz of Poland gets help from a trainer during a break against Pablo Andujar of Spain in their men's singles second round match on day three of the 2014 Australian Open tennis tournament in Melbourne on January 15, 2014. AFP PHOTO / SAEED KHAN IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE

Pablo Andujar of Spain adjusts the strings on his racket during his loss to Jerzy Janowicz of Poland during their men's singles second round match on day three of the 2014 Australian Open tennis tournament in Melbourne on January 15, 2014. AFP PHOTO / SAEED KHAN IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE

Jerzy Janowicz of Poland celebrates his victory over Pablo Andujar of Spain with supporters in their men's singles second round match on day three of the 2014 Australian Open tennis tournament in Melbourne on January 15, 2014. AFP PHOTO / SAEED KHAN IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE