The Indians won in dramatic fashion at Progressive Field on Sunday, with rookie Cord Phelps hitting a three-run walk-off home run to power a 5-2 victory over the Pirates in 11 innings.
It was the first career homer for Phelps, who entered the game with just one hit in his first 16 big-league at-bats.
The win completed a sweep for Cleveland, which has won five of its last seven games.