Del Potro plays tennis with Aguero

Juan Martin Del Potro boosted his hopes of reaching the semi-finals of the Barclays ATP World Tour Finals with a crushing 6-0 6-4 victory over a below-par Janko Tipsarevic in front of his close friend Sergio Aguero.

So comfortable was Del Potro's victory that he even had time to have a hit with Manchester City striker Aguero - a fellow Argentine - after the match, the Daily Mail reports.