Rafael Nadal tied with a child.
Novak Djokovic ( Новак Ђоковић , Novak Đoković , [ nôʋaːk d͡ʑôːkoʋit͡ɕ ] ; born 22 May 1987 ) , often referred to by the hypocorism Nole , is a Serbian professional tennis player who is currently ranked world No. 2 in men 's singles tennis by the Association of Tennis Professionals ( ATP ) . Rafael Nadal . Nadal has won 14 Grand Slam singles titles , the 2008 Olympic gold medal in singles , an all-time record of 30 ATP World Tour Masters 1000 titles , tied with Novak Djokovic , and a record 18 ATP World Tour 500 tournaments .