NFL teams watched Johnny Manziel throw for the first time since 2015 as the quarterback took part in the University of San Diego's pro day on Thursday.

The 2014 first-round pick, who has been training with QB guru George Whitfield Jr., agreed to take part in San Diego's pro day because the team didn't have a quarterback available to attend, and it put Manziel in front of NFL scouts who were in attendance.

Scouts from 13 NFL teams were on hand to watch Manziel, including the Bears, Browns, Chargers, Giants, Chiefs, Jets, Patriots, Raiders, Titans, Lions, Jaguars, Panthers and Buccaneers. Manziel was also weighed, and per school officials, he came in at 200 pounds.

In his six games starting for the Cleveland Browns, Manziel went 2-4, throwing for 1,500 yards and seven touchdowns. The Browns released Manziel in March 2016, after a tumultuous offseason that Manziel described as "self-sabotage mode."

ESPN Staff Writer Johnny Manziel getting warmed up to throw at University of San Diego pro day. ESPN Staff Writer Johnny Manziel will have about 35 throws to wide receivers and tight ends here at University of San Diego pro day. He's been training with QB guru George Whitefield down here in San Diego. ESPN Staff Writer Johnny Manziel now getting warmed up ESPN Staff Writer More Johnny Manziel warming up. He's moving well and looks to be in good shape. ESPN Staff Writer Pretty good crowd that showed up here to watch Johnny Manziel throw.

Johnny Manziel threw today at the University of Sam Diego.

12 teams in attendance.

38 attempts.

2 misses.

Light rain.

Strong day say those in attendance. pic.twitter.com/A8NAtSO5In — Adam Schefter (@AdamSchefter) March 22, 2018

ESPN Staff Writer Johnny Manziel said he feels like he's in the best shape of his life. He has an offer from an CFL team on the table and will compete in The Spring League, a developmental football league, in Austin, Texas next week. Manziel understands that he still has to show he's a changed man to NFL decision makers.