Zverev battles into Halle semis, joined by Medvedev

The German second seed felled Cobolli 6-4, 7-6 (8/6) and will next face Daniil Medvedev, after the Russian third seed beat American Alex Michelsen 6-4, 6-3 in his quarter-final. In a rematch of a third-round meeting at Roland Garros three weeks ago, Zverev again produced an impressive serving performance. He crucially rallied from 0-40 down in the second and fourth games of first set. A finalist in Stuttgart last week Zvervev will be hoping to go one better on the grass of Halle after being a...