![Juan Martin del Potro of Argentina covers his head with shirt as he plays Marin Cilic of Croatia in their Men's singles fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday Jan. 24, 2010. (AP Photo/John Donegan ... Juan Martin del Potro of Argentina covers his head with shirt as he plays Marin Cilic of Croatia in their Men's singles fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday Jan. 24, 2010. (AP Photo/John Donegan ...](https://l450v.alamy.com/450v/2needn6/juan-martin-del-potro-of-argentina-covers-his-head-with-shirt-as-he-plays-marin-cilic-of-croatia-in-their-mens-singles-fourth-round-match-at-the-australian-open-tennis-championship-in-melbourne-australia-sunday-jan-24-2010-ap-photojohn-donegan-2needn6.jpg)
Juan Martin del Potro of Argentina covers his head with shirt as he plays Marin Cilic of Croatia in their Men's singles fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday Jan. 24, 2010. (AP Photo/John Donegan ...
Marin Čilić | @kooyong_classic Thank you again for an invitation to play in front of your great crowd. Always a pleasure! Filled with good energy for ... | Instagram
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