Rafael Nadal overcomes Novak Djokovic in penalty shootout

World number one and number two tennis stars Rafael Nadal and Novak Djokovic went head-to-head in a penalty shootout in Argentina.

The pair were in South America for an exhibition match, but decided to take on a football challenge at the Bombonera Stadium afterwards.

Despite Djokovic overcoming his Spanish opponent at the ATP World Tour Finals earlier this month, it was Nadal who came out on top 3-1 in the penalty shootout.

Nadal's family has a football background given that his uncle Miguel Angel Nadal used to play for Barcelona.