Isaac TeSlaa opened the first week of 2026 OTAs looking more comfortable in Detroit’s offense, and that showed up in his route work on May 29. Early spring reps also placed him with Amon-Ra St. Brown and Jameson Williams in a potential starting receiver trio, which puts TeSlaa squarely in the Lions WR3 conversation heading toward training camp.
Detroit has already seen this role grow. TeSlaa’s offensive snaps jumped from 104 in the first eight games of 2025 to 330 in the final nine, as his command of the offense improved and Jared Goff grew more comfortable throwing to him.
TeSlaa’s offseason work is starting to show
TeSlaa spent the offseason targeting quickness and separation, and the early OTA returns line up with that plan. He looked smoother as a route runner and more settled within the structure of the Lions offense than he did at the same point last year.
That detail matters in Detroit’s passing game. Goff thrives when receivers hit landmarks on time, come out of breaks cleanly, and present a quick answer against shifting coverage.
Improved short-area quickness can help TeSlaa on slants, crossers, outs, and option routes that ask for timing more than recovery speed. Cleaner footwork also makes him more useful from different alignments, especially if Detroit wants to move St. Brown around the formation and keep Williams stretching defenses vertically.
The late-season usage was already pointing here
TeSlaa’s rookie production stayed modest overall, but the second-half trend was real. His official 2025 totals were 16 catches for 239 yards and six touchdowns in 17 games, with three starts.
The split over the season shows where his year started to turn. He had four catches for 65 yards and two touchdowns from Weeks 1 through 12, then added 12 catches for 174 yards and four touchdowns from Weeks 13 through 18.
Dan Campbell’s January comments added more context. TeSlaa had grown more than any of the club’s young players and was handling multiple roles, which fits the broader picture of a receiver earning more trust, not just collecting a few late targets.
Why the fit makes sense in this offense
Detroit does not need TeSlaa to do the same jobs as St. Brown or Williams. The offense needs a third receiver who can stay on schedule, separate well enough for rhythm throws, and line up in more than one spot without blowing up spacing.
TeSlaa’s improved route detail supports that role. If he is getting in and out of breaks faster, the Lions can use him more confidently in three-receiver sets, condensed formations, and play-action concepts that ask wideouts to be precise after the snap.
Multiple-role trust also matters here. Campbell’s earlier praise and TeSlaa’s late-season snap climb suggest the staff values his ability to handle different assignments, which is a requirement for regular work in this offense.
Training camp should sharpen the WR3 battle
OTAs do not lock in a receiver rotation, but TeSlaa has entered camp season with visible momentum. The clearest training camp question is whether he keeps taking reps with St. Brown and Williams when practices get more competitive.
His snap count is the next detail to track. If TeSlaa holds onto that spot in three-wide packages, his early 2026 workload could look closer to the heavier role he carried over the final nine games of 2025 than the limited usage he had early as a rookie.
Camp should also reveal how often Detroit trusts him inside versus outside, and whether that flexibility separates him in the fight for Lions WR3 snaps. If the route polish from spring carries into padded practices, TeSlaa will have a real chance to keep that role when the offense starts sorting out its regular-season rotation.
