Tennis-Zverev knocked out in Halle by Frenchman Humbert

(Reuters) - Third seed Alexander Zverev suffered a surprise defeat against Frenchman Ugo Humbert at the Halle grasscourt tournament on Thursday, the third seed going down 7-6(4) 3-6 6-3. A first set dominated by serve inevitably went to a tiebreak in which Humbert pulled clear to move ahead. Germany's Zverev grabbed an early break in the second set which proved sufficient to level the match.