Lleyton Hewitt defeated Jack Sock (7-5, 6-4) in a Hopman Cup match earlier today in Australia. During the match Hewitt was called for a fault, but Sock saw that the ball was actually in. While Hewitt was preparing his second serve, Sock shocked everyone by telling Hewitt that he should use a challenge. This was confusing and hilarious to everyone in attendance, but Hewitt used a challenge and Sock was right.
It was a great moment that produced these three faces. See kids? Sportsmanship can be fun too.