Naylor (groin) will start at first base and bat fourth in Saturday's ALDS Game 1 matchup against the Tigers.
Groin soreness kept Naylor out of the lineup for the Mariners' final two regular-season games, but he's now feeling well enough to rejoin the starting nine for the beginning of the ALDS. The 28-year-old may still have to miss time during the series, however, as his wife is expected to go into labor in the very near future.