Complex sentence: In the bottom of the first, the Mariners got two cheap runs on two groundouts, but Harold Baines homered to make it a one-run game in the second and in the fifth the Mariners began to fall apart.
Split into simpler sentences: In the bottom of the first, the Mariners got two cheap runs on two groundouts. But Harold Baines homered to make it a one-run game in the second and in the fifth the Mariners began to fall apart.