Belinda Bencic's coach and husband Martin Hromkovic revealed his "biggest challenge" in guiding the Swiss tennis star on her post-partum comeback.

Belinda Bencic wins her first title since giving birth last year - and now she is part of an A-list cast of champions.

Former world number 4 Bencic celebrated the arrival of her first child, Bella, in April before making her comeback at the end ...