Halle (Germany) June 24 (IANS) Top seed Swiss tennis player Roger Federer knocked out the current champion of Halle Open German Florian Mayer and advanced to the semi-final of the tournament.
Federer an eight-time winner in Halle took just over one hour to beat Mayer 6-3 6-4 in the tournament played on grass on Friday Efe news reported.
Federer will seek his ninth title in the final against Russian Karen Khachanov who beat his compatriot Andrey Rublev 7-6 (8) 4-6 6-3.
--IANS
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Federer defeats Mayer, reaches Halle Open semi-final
