Complex sentence: He started the 2010 season as a setup reliever in the bullpen and finished the season 1--2 with a 2.86 ERA, 55 strikeouts in 44 innings, and 13 saves.
Split into simpler sentences: He started the 2010 season as a setup reliever in the bullpen. He finished the season 1--2 with a 2.86 ERA, 55 strikeouts in 44 innings, and 13 saves.