"It's had more consequences than I thought. I dragged this pain for about three months." Meanwhile, Alexander Zverev came from a break down in both sets to defeat Marin Cilic 7-6 (5), 7-6 (1.

However, Cilic, who amassed 46 unforced errors, allowed Zverev to break straight back. Despite saving a match point at 4-5, Cilic wilted in another tiebreaker to fall to 1-9 across his four ...

Marin Cilic is next up for Zverev, the fourth seed having eased into the last four with a 6-3 6-3 triumph over Spain's Pablo Carreno Busta. ZVEREV RALLIES TO EXTEND STREAK ...

But it was a pair of errors from Zverev in the final game that gave Sock the match. Trailing 5-4 and at 30-all, Zverev double-faulted for the eighth time to hand Sock a match point.

Cilic made 46 unforced errors as he gave up a break advantage in both sets in losing to Alexander Zverev 7-6 (5), 7-1 (1) on Monday, dropping the Croat's record at the season-ending tournament to ...

Zverev, 21, went on to take the tie-break and then fought back from a break down midway through the second set. Cilic saved a match point at 5-4, but Zverev clinched victory in the breaker.

A few hours after old master Roger Federer reminded everyone of his enduring magic, Alexander Zverev, the man leading the next generation of men's tennis, dazzled on his ATP Finals debut.