ATP roundup: Alexander Zverev upsets Novak Djokovic in Olympics semis

Novak Djokovic's attempt to win tennis' Golden Slam ended Friday at the Tokyo Olympics.

No. 4 seed Alexander Zverev of Germany stormed back to beat top seed Djokovic 1-6, 6-3, 6-1 and advance to the gold-medal match on Sunday.

In the third set, Zverev jumped to a 3-0 lead as he broke the Serbian legend's serve twice. Zverev, 24, also saved four break points of his own.

Zverev had lost five straight matches against Djok