A difficult season that includes a DL stint for an anxiety disorder continues for Aubrey Huff as the San Francisco Giants veteran injured his right knee amid the celebration of Matt Cain's perfect game on Wednesday night . The injury occurred immediately after Joaquin Arias fielded Jason Castro's tough grounder and made his strong throw across the diamond to wrap up the historic performance. As Giants players started flooding out of the dugout — some using the steps, others jumping the railing — Huff made his leap and landed awkwardly on his right leg, twisted his knee, and then ate some dirt. You can view the faceplant at the 9:10 mark of this MLB.com video . SB Nation also has a couple gifs giving you two different angles of Huff's tumble .