Complex sentence: Bertell spent the first two months of the 1965 campaign as the Cubs' starting catcher, but fared poorly at the plate, batting just.214 and managing only two extra-base hits (both doubles) in 34 games.
Split into simpler sentences: Bertell spent the first two months of the 1965 campaign as the Cubs' starting catcher. He batted.214 with two extra-base hits (both doubles) in 34 games.