UB hosted its pro day at the Bills' ADPRO fieldhouse where Jackson was able to show the work he's put in with Palmer on short and intermediate throws and his footwork. It was a script copied from Allen's pro day, according to Palmer.

The Bills were monitoring quarterbacks in the later rounds of the draft. General manager Brandon Beane didn't want to root for anyone to go undrafted but was"thrilled" with the opportunity to bring him in.

"My plan is to let our three quarterbacks compete," Beane said. "We're excited we got Tyree and we're excited to see him this weekend."

The last player from UB to sign a UDFA deal with the Bills was Jordan Johnson in 2017. Johnson made it to the final round of cuts before the season began. Johnson was Jackson's running back his freshman year.