Complex sentence: He returned for a second stint with the Colorado Rockies for the 2004 season and had a tremendous year, hitting 43 doubles and 35 home runs, and led the league with 131 RBIs.
Split into simpler sentences: He returned for a second stint with the Colorado Rockies for the 2004 season. He had a tremendous year, hitting 43 doubles and 35 home runs, and led the league with 131 RBIs.