Juan Martin del Potro consoled an emotional Nicolas Almagro after the Spaniard was forced to quit the match in the third set in their French Open tie due to a knee injury.

The two were facing off in the second round at Roland-Garros where they shared the first and second sets 6-3, with Argentine Del Potro taking the first.

After Almagro took the second set, the match was evenly poised at 1-1 in the third, when the 31-year-old's recurring knee problems struck again.Once he realised that he could no longer continue, Almagro collapsed to the floor and began to cry on court.

Del Potro then hopped over the net to console his frustrated and deeply emotional opponent.Take a look at the beautiful moment: