Osaka’s Singapore hopes hang by a thread after Kerber defeat

A tenacious Angelique Kerber overcame a second set stutter to outlast Naomi Osaka on Wednesday, leaving the Japanese sensation's WTA Finals campaign hanging by a thread. Kerber had a chance to serve it out in the second set but triumphed the hard way in a pulsating 6-4, 5-7, 6-4 victory in 2 hours