It's going to take some kind of superhuman out-making effort to unseat this player.
As we go deep into postseason series, you're going to hear a lot about the players who are struggling at the plate. What wouldn't even qualify as a slump during the regular season seems like the end of the world in the small sample size environment of the playoffs.
The acknowledged master of the series-long slump is former shortstop Dal Maxvill. Playing for the Cardinals In 1968, he was 0-for-22 against the Tigers in the World Series. This is probably not a good example of a good hitter running into some bad luck as Maxvill was a career .217 swinger with an OPS+ of 57. Relative to the rest of his career, however, he was a monster in 1968, running up a 93 OPS+ and hitting .253 in a league that hit .243. Because it was his best offensive season, naturally, he also won his only Gold Glove that year.