Complex sentence: In August 2007, Haase for the first time defeated a top-10 player at the Rogers Cup, beating Tomáš Berdych, 6--4,7--5.
Split into simpler sentences: In August 2007 Haase for the first time defeated a top-10 ranked player. At the Rogers Cup he beat Tomáš Berdych 6--4,7--5.