Pryor was one of seven players to be shipped out by the Jaguars to make room for new recruits claimed off waivers.
General manager Dave Caldwell admitted that it was a tough decision to get rid of the 23-year-old undrafted rookie but, with Will Ta'ufo'ou securing the role as number one fullback, Pryor was a luxury that the Jaguars could not afford.
"That was a tough one. We had a lot of discussions with that. Very few teams carry two fullbacks and Lonnie was a little bit of a luxury," Caldwell told reporters.
The Jaguars' first match of the regular season comes against the Kansas City Chiefs on Sunday.