Complex sentence: Tettleton began the 1987 season as the Athletics starting catcher however, injuries and weak hitting limited him to 82 games as newcomer Terry Steinbach began to make a positive impression.
Split into simpler sentences: Tettleton began the 1987 season as the Athletics starting catcher. However, injuries and weak hitting limited him to 82 games as newcomer Terry Steinbach began to make a positive impression.