Complex sentence: In his rookie season, Reyes had a 17-game hit streak, longest by a National League rookie and he finished the season with a 35-game errorless streak, longest in the majors that season.
Split into simpler sentences: In his rookie season, Reyes had a 17-game hit streak, longest by a National League rookie. He finished the season with a 35-game errorless streak, longest in the majors that season.