Novak Djokovic is more than a decade older than any other man in the Wimbledon semifinals. He says it motivates him to see if he can keep going toe-to-toe against the younger players at the top of tennis these days.

A regular at tennis tournaments, Jelena Djokovic opted for summertime knits with her attire. On Monday, Djokovic styled a blue and white cable-knit vest courtesy of contemporary British fashion brand Varley. She wore the garment overtop a long-sleeve white shirt. Djokovic coordinated the vest with a pair of gray-blue cargo pants.

Every other day at Wimbledon has brought an opportunity to compare the greatest player in men's tennis and one of his heirs.