OAKLAND -- Sean Murphy took a big step in trying to put his knee issues fully in the rearview mirror.

The A's announced Thursday afternoon that Murphy underwent surgery on his left knee. The procedure involved a lateral meniscal debridement and was performed by Dr. Thomas Carter in Phoenix, Ariz.

Murphy dealt with a meniscus issue on that same left knee throughout the season, with the nagging injury landing him on the injured list on two separate occasions in the Minors. Once he was called up on Sept. 1, the catcher immediately made an impact. He quickly earned himself regular playing time, including a start for Oakland in the American League Wild Card Game, and finished the year batting .245 with four home runs and eight RBIs over 20 games.

The A's expect Murphy to be fully healthy for Spring Training, where he'll prepare for a 2020 season that will likely feature him as their primary starting catcher.