Quarterbacks Joe Burrow, Jake Fromm, Justin Herbert, Jalen Hurts and Tua Tagovailoa have all been added to the combine roster, which takes place from February 24 to March 1 and will give teams a chance to evaluate players up close before the NFL draft begins on April 23.
An invite doesn't necessarily guarantee a player will show up on the field in Indiana. Last year's No. 1 overall pick, Kyler Murray, declined to participate in the events but still interviewed with teams during the course of the week.
Some of the top college programs will be well-represented. Players from Ohio State, Clemson, LSU, Michigan, Alabama, Georgia, Auburn, Notre Dame, Utah, Florida, Miami, Michigan State, Mississippi State, Oregon, TCU and Washington make up 42 percent of the invitees.
Athletes will be evaluated in the 40-yard dash, bench press (225 lbs), vertical jump, broad jump, 20-yard shuttle, three-cone drill and 60-yard shuttle as well as numerous position drills and cognitive tests. Teams will also be able to interview players in 15-minute intervals.
While the top of the draft board seems secure, with some order of Burrow, Chase Young, Tagovailoa, Justin Herbert and Isaiah Smith, prospects can use the week to improve their draft stock significantly.
Running back showdown
Position battles are usually hard to get excited about at the combine. That shouldn't be the case when the latest crop of running backs lines up for the 40-yard dash. Only one tailback has ever ran a sub-4.25 second 40 (Chris Johnson at 4.24 in 2008) since electronic timing began in 1999. Will anyone be able to top it?
Ohio State's J.K. Dobbins, Boston College's AJ Dillon, LSU's Clyde Edwards-Helaire and Wisconsin's Jonathan Taylor will give it a shot.
Keep an eye on Notre Dame's Tony Jones and Georgia's D'Andre Swift, too. This year's class is loaded at running back, and there will be plenty of debate about who deserves to get picked first. Dobbins is the clubhouse leader there, but a strong showing in Indianapolis could change that assessment.
Who will throw?
While Murray did throw for scouts at Oklahoma's pro day last year, the current Arizona Cardinal refused to do so at the combine. Now scouts will see whether this year's class of QBs follows suit.
Tagovailoa, who is recovering from a dislocated hip, has already suggested he will not participate in on-field activities at the combine.
"My main goal is not to win the 40, not to win the bench press, but to win my medical," Tagovailoa told NFL Network during Super Bowl week. "I'm going to go over there looking to win my medical and then go in and interview with the teams. That's pretty much what I'm going to do. And then hopefully there's a pro day down the line, either late March or early April."
Burrow likely doesn't need to throw at this point either. After completing arguably the most successful season by a quarterback in college football history, his resume is ironclad. It's up to the likes of Herbert, Fromm, Hurts and Jacob Eason to use the event to their advantage and improve their stock.