Complex sentence: Murray remained the main Penguins goaltender through the playoffs after replacing Jeff Zatkoff in game 3 of the first round and only being replaced by Marc-André Fleury in one of the 16 games the team took to qualify for the 2016 Stanley Cup Finals.
Split into simpler sentences: Murray remained the starting goaltender through the playoffs after replacing Jeff Zatkoff in game 3 of the first round. He was only being replaced by Marc-André Fleury in one of the 16 games the team took to qualify for the 2016 Stanley Cup Finals.