Rupp went 0-for-3 and left four runners on base in Saturday's 3-3 tie with the Red Sox.
It was a tough game for Rupp, who has just five hits in 31 at-bats this spring. Despite the slow start, Rupp is at no risk of losing his job to anyone. However, he will need to produce during the regular season to hold off top prospect Jorge Alfaro -- who's waiting for his opportunity in the majors at Triple-A Lehigh Valley.