Anthony Santander is not in the lineup for Thursday’s ALCS Game 4 showdown against the Mariners due to back soreness.

Santander, who went 0-for-2 with a walk during Wednesday’s Game 3 rout in Seattle, continues to deal with a lingering back issue, according to Blue Jays manager John Schneider. The switch-hitting 30-year-old slugger takes a seat with Addison Barger getting the nod in right field and Isiah Kiner-Falefa drawing into the lineup at second base for the first time in the series. Here’s the full lineup: George Springer (DH), Nathan Lukes (LF), Vladimir Guerrero Jr. (1B), Alejandro Kirk (C), Daulton Varsho (CF), Ernie Clement (3B), Barger (RF), Kiner-Falefa (2B) and Andrés Giménez (SS).