Complex sentence: After beating Yen-hsun Lu in the first round, Brown then upset 10th seed Rafael Nadal in four sets in the second round, before losing to Victor Troicki in four sets in the next round.
Split into simpler sentences: After beating Yen-hsun Lu in the first round, Brown then upset 10th seed Rafael Nadal in four sets in the second round. He subsequently lost to Victor Troicki in four sets in the next round.