5 most heart-warming moments in tennis history

We've seen our favourite players display their immense prowess on court. Roger Federer's tweeners, drop shots, Serena Williams' powerhouse serves - fans have seen it all.But behind those sporting icons are hearts of gold. Here are five times tennis players touched fans' hearts with displays of kindness, sportsmanship and true humanity.

#5 Jack Sock gives Lleyton Hewitt a point

American Jack Sock was playing Australian tennis icon Lleyton Hewitt prior to the former No. 1’s pre-announced retirement at a Hopman Cup match in Perth ahead of the Australian Open season in 2016.

23rd-ranked Sock was trailing Hewitt 4-5 in the first set of their tie at the national team tournament, and had to break serve to stay in the set. Hewitt, playing for Australia Gold, led Sock 30-0 in that game, but then saw the chair umpire call his serve out.

In an incredible display of sportsmanship, Sock stopped the game, telling Hewitt, “That was in if you want to challenge it.” An incredulous Hewitt stared at Sock for a few minutes, unsure of what to do.

Hewitt eventually challenged it to see that Sock was right and the shot was, in fact, in. Hewitt won the point and eventually the match in straight sets, taking his side, Australia Gold, to a 3-0 win over the United States.

But it was Sock’s sportsmanship that was lauded in that match, and it was quickly recognized as one of the best displays of on-court behaviour that tennis had ever seen.