Not many people watch the UFL in the spring, but Lions coach Dan Campbell says it's a place to see some talented professional football players — and he'd like to see it become an official NFL farm system.

Amon-Ra St. Brown and Brian Branch got at it again as the Lions looked ready for joint practices to take out some of this energy.

Campbell also emphasized there's room for improvement for the Lions’ No. 1-ranked offense (33.2 points/game) from last season. Although the then-Ben Johnson-led unit had no problem scoring points, Campbell would like the now John Morton-guided offense to get better converting on third-and-short this upcoming season.