Complex sentence: He then reached his first grass-court final at the Halle Open, falling to world No.1 Roger Federer in three sets, and reached the fourth round at Wimbledon, once again losing to Federer, this time in straight sets.
Split into simpler sentences: He then reached his first grass-court final at the Halle Open, falling to world No.1 Roger Federer in three sets. He reached the fourth round at Wimbledon, but again lost to Federer, this time in straight sets.