• Jalen Travis is a massive human at 6-8, 339 pounds
• Travis has crazy athleticism for his size, running a 40-yard dash in 5.14 seconds and posting a 35-inch vertical leap
• Travis’ size likely makes him a swing tackle, freeing up Matt Goncalves to move to right guard

INDIANAPOLIS — The Colts have finally gone after their needs on the offensive line.

Indianapolis has selected Iowa State offensive tackle Jalen Travis in the fourth round, at No. 127, which came after a trade back with the Rams to obtain an extra sixth-round pick.

Colts draft grade: Iowa State OT Jalen Travis

Grade: B

Why: The Colts entered Day 3 with needs at a couple starter spots at weak-side linebacker and right guard. It appears, at least initially, that they went in another direction in the fourth round after trading back 10 spots with the Rams to acquire an additional sixth-round pick.

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But Day 3 was going to be about building up the depth of the offensive line after allowing center Ryan Kelly and right guard Will Fries to leave in free agency. The Colts had yet to add any outside offensive linemen, and so Travis will be the first one.

He’s an absolutely massive prospect at 6-foot-8 and 339 pounds. He also comes with outrageous athleticism for that size, as he ran a 5.14-second 40-yard dash and posted a 35-inch vertical jump, which just happens to be better than the cornerback they drafted in the third round yesterday, Minnesota’s Justin Walley.

Travis posted a 9.08 out of 10.00 on the Relative Athletic Score, which compares offensive tackle prospects since 1987.

Travis is an older prospect, having started two years at Princeton before transferring to Iowa State last year for another 11 starts.

That experience and year in a major conference could allow him to be a swing tackle this season, which could free up Matt Goncalves for a move into right guard. If that’s the domino effect that ensues, the Colts will have essentially found a route to replacing Fries in the fourth round, which can be a cost-effective approach that also gets their five best offensive linemen on the field.

That’s if it comes together early on, of course. At the minimum, Travis should be able to supplant Blake Freeland for a third tackle spot and have enough of a low-pressure role as a rookie to develop some technique and strength on his massive frame while adjusting to Indianapolis’ zone-heavy run game approach.

And, depending on how long Braden Smith has left, Travis could be looking at a chance to start in a year or two.

The decision delays the biggest need the Colts have to fill on defense at weak-side linebacker. It also leaves them with a need for a No. 2 running back. Travis will need to prove he’s ready to fill a role this year, or the Colts will be at risk of spending their third- and fourth-round picks on non-factors as rookies.

But they sorely needed depth and options on the offensive line, and Travis gives them one with real upside.