Complex sentence: He then beat fellow Pole Lukasz Kubot in straight sets, becoming the first Polish man to reach a Grand Slam semi-final, where he was beaten by world number 2 Andy Murray in four sets.
Split into simpler sentences: He then beat fellow Pole Lukasz Kubot in straight sets, becoming the first Polish man to reach a Grand Slam semifinal. There, he was beaten by world no.2 Andy Murray in four sets.