DUSSELDORF, Germany, May 23 (UPI) -- Qualifier Guido Pella continued his upset run Thursday with a straight-set win in quarterfinal play of the Power Horse Cup tennis tournament in Germany.
Pella pulled within one victory for his first ATP finals appearance with a 7-6 (7-5), 7-5 win over seventh-seeded Viktor Troicki. Pella ousted top-seeded Janko Tipsarevic in the second round.