The U.S. Open kicked off yesterday in Flushing Medows with two of tennis' biggest names, Andy Murray and Roger Federer cruising easily in their first round matchups. The guy making news today, though, is the sport's best personality—Novak Djokovic.

During an early warm-up this morning, Djokovic made a kid's life by having him come hit serves with his racket. After hearing a little guy in the crowd jokingly yell at him, "Will you marry me?" Djokovic scanned the crowd, found the kid and waved him down. He gave him his racket and told him to hit a few serves before playing against him with his hand.

To the little guy's credit, he has a pretty mean serve.

Via The Guardian