Complex sentence: Brock fell into a hitting slump early in the 1978 season and lost the left fielder's job however, he fought back during spring training in 1979 with a.345 batting average to regain his starting job.
Split into simpler sentences: Brock fell into a hitting slump early in the 1978 season and lost the left fielder's job. However, he fought back during spring training in 1979 with a.345 batting average to regain his starting job.