Jeff Caldwell already feels like Chiefs' next training camp sensation

The Kansas City Chiefs 2026 draft is in the books, and they are receiving pretty good grades for their selections. However, the draft itself is just the first step of adding rookie prospects to their roster. As soon as the draft finished, the Chiefs made several UDFA signings.

While several of those signings could surprise their way onto the roster this fall, none of them come with more upside than wide receiver Jeff Caldwell.

Elite traits make Caldwell an easy bet to watch

Caldwell's combination of size, 40 time, and explosive vertical and broad jumps gives him a perfect RAS (Relative Athletic Score).

Granted, he didn't run the agility drills, but someone that is 6'5" and 216 pounds, runs a 4.31 forty, and can vertical leap 42" is just a special type of athlete that is hard to find even in the NFL. The question then becomes: why was a player with that freakish skill set going undrafted? The answer is that he just hasn't shown the ability to be a reliable receiver against any kind of real competition.

Production questions explain why he went undrafted

Caldwell spent four years (one as a redshirt) at a Division II school, Lindenwood. He put up 53 receptions for 1,032 yards and 11 touchdowns in 2024 and then entered the transfer portal. He received offers from eight different Division I schools but ultimately picked Cincinnati because it was close to home. In his final college season, he put up 32 receptions for 478 yards and 6 touchdowns. Thirty-two receptions against college defenses with all those physical gifts isn't exactly impressive.

For comparison, KC's 6th-round draft pick Cyrus Allen had 51 receptions for 674 yards and 11 touchdowns playing in the exact same offense, and he's only 5'11" and ran a 4.49 forty, so clearly size/speed isn't everything. However, if the Chiefs' new wide receiver coach, Chad O'Shea, can help Caldwell develop his route running and consistency, the upside is well worth bringing him in as an undrafted free agent.

Recently, Steve Smith compared Caldwell to Marques Colston, but Caldwell's highlight reels show someone with potentially more downfield upside.

With physical tools like that, it doesn't take much to imagine Caldwell making some huge splash plays in training camp that will have fans salivating for what could happen if he reaches his upside. Much like Justyn Ross and an endless list of prospects before him, there always seems to be a player who has the tools to capture the hearts and hopes of KC fans during training camp. Just days after the draft ended, it already feels like Caldwell is a lock to be that player this season.

In Dane Brugler's "The Beast" draft guide, he had the following to say about Caldwell:

"A “Freaks List” alum and combine darling, Caldwell builds up his speed quickly and strides out to create vertical separation. He is light-footed with natural flexibility at the top of routes and the catch point, but the finer points of the position (controlled steps, release package, etc.) aren’t on an NFL level yet."

Special teams and development will determine his fate

The key for Caldwell will not be making a few huge splash plays in camp (or even the preseason games). For a player like Caldwell, making the roster will come down to things like showing he can be a reliable special teams player, showing he's willing to block in the run game, and showing that he can take coaching and improve as a route runner.

If Caldwell can do those things, it will make keeping those impressive physical tools around to try and develop worthwhile, but if Caldwell is just a few big highlight-reel plays and that's it, then he'll be lucky to even make the practice squad (regardless of how much buzz his highlights get on social media).

Jeff Caldwell is one of the more intriguing UDFA signings that the Chiefs have had in recent years. His elite physical tools will give him a shot to prove he belongs on an NFL roster. If he can get in his new wide receiver coach's good graces and show that he's willing to work and improve, he has the upside to be one of the rare training camp sensations that actually pans out.

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