Complex sentence: The next inning, Buck Martinez (normally a catcher) entered the game as the Brewers sixth pitcher of the day; as a pitcher, Martinez batted in the 9th, stroking an RBI single.
Split into simpler sentences: The next inning, Buck Martinez (normally a catcher) entered the game as the Brewers sixth pitcher of the day. As a pitcher, Martinez batted in the 9th, stroking an RBI single.