Vladimir Guerrero Jr. was scratched from the Toronto Blue Jays lineup on Tuesday after reporting back tightness, forcing manager John Schneider to reshuffle the infield ahead of the series finale against the New York Mets.

What happened?

On Tuesday, the Jays announced that first‑base star Vladimir Guerrero Jr. would not start. Sean Keys moved to first base, Ernie Clement shifted to third, and Luis Urías took over at second. The change came after Guerrero Jr. complained of discomfort in his lower back during warm‑ups. The decision left the lineup thin, with several other players already on the injured list.

Why it matters for Vladimir Guerrero Jr.

The scratch adds pressure to a sluggish start for Guerrero Jr. Through his first few games of the 2026 season, he has logged just four home runs and an OPS of .695, a steep drop from his rookie‑year .772. His power numbers are down, and even his ability to leg out doubles has faded—only 12 doubles and 16 total extra‑base hits so far. Those stats suggest a career‑low trajectory if the back issue lingers.

How the Jays responded

With Guerrero Jr. sidelined, Toronto turned to depth players. Keys, a versatile infielder, received his first major‑league start at first base. Urías, a recent acquisition, filled the second‑base spot, while rookie Yohendrick Pinango earned a bench role. The club hopes these substitutes can keep the offense humming while the slugger recovers.

What comes next?

If the back tightness persists, Guerrero Jr. could miss another start on Wednesday, forcing the Jays to continue rotating bench talent. The series against the Mets concludes with a 7:07 p.m. ET tip‑off, featuring Noah McLean on the mound for New York and Kevin Gausman for Toronto. All eyes will be on how the makeshift lineup performs and whether Guerrero Jr. returns healthy for the next game.

Impact on the season

Toronto is fighting to climb back into AL contention, and losing its marquee hitter at a critical juncture hurts momentum. The early‑season slump, combined with injuries to Jesus Sanchez, Addison Barger, and Lenyn Sosa, forces the Jays to rely on younger arms. How quickly Guerrero Jr. regains form could dictate the team's playoff chances.