Halle tennis: Medvedev ousted in opener, Nishikori advances
World No.2 Daniil Medvedev of Russia suffered a major blow to his Wimbledon preparations as world No. 45 Jan-Lennard Struff of Germany beat him 7-6(6), 6-3 in the opening round of Noventi Open, a grass-court tournament, on Tuesday. This…