The workout isn't all that surprising considering the interest the team has in selecting a quarterback. Head coach Jeff Fisher revealed last month that the team intends to pick a QB.
Petty would be an interesting option for the club on Day 2 (Rounds 2-3) of the draft. He ranks third among quarterback in NFL Media analyst Mike Mayock's positional rankings. He has plenty of natural arm talent and good upside given his athleticism. Still, he's a bit of a project considering there's a big transition from Baylor's spread offense to what he'll be asked to run in the NFL.
There's been some speculation that the Rams are in the mix to take Mariota, but if they end up passing on Mariota with their first-round pick (No. 10 overall), the franchise could certainly take someone like Petty in the second or third round.