Complex sentence: Relying on a team of developing players, the club remained unbeaten throughout the pool stage, and beat Bath Rugby (31--23) in the semi-final at The Stoop and Sale Sharks (32--14) in the final at Sixways Stadium.
Split into simpler sentences: Relying on a team of developing players, the club remained unbeaten throughout the pool stage. Harlequins beat Bath Rugby (31--23) in the semi-final at The Stoop, and defeated and Sale Sharks (32--14) in the final at Sixways Stadium.