Dave Birkett

Detroit Free Press

Wide receiver Corey Fuller will miss at least the first six weeks of the regular season with the same foot injury that's kept him sidelined for all of training camp.

The Detroit Lions informed Fuller on Thursday that he'll go on the reserve physically unable to perform list when they trim their roster from 90 to 75 players at next week's deadline.

Fuller broke his foot during organized team activities and was one of three Lions who opened training camp on the active PUP list.

The Lions activated Corey Robinson off PUP on Aug. 1, though the second-year offensive tackle is injured again and not expected to play in Saturday's preseason game against the Baltimore Ravens.

Tight end Brandon Pettigrew remains on PUP as he recovers from the torn ACL he suffered last year. It's not yet clear if Pettigrew will join Fuller on the reserve PUP list next week or be activated with an eye on playing sometime in September.

Players who begin the season on PUP must sit out at least the first six weeks of the regular season. Once they return to practice, teams have another three weeks to activate them to the 53-man roster or place them on season-ending injured reserve.

Fuller is expected to need the minimum six weeks on PUP, which would make him eligible to return Oct. 17.

A sixth-round pick out of Virginia Tech in 2013, Fuller has 18 catches over the last two seasons and was expected to compete for a backup receiver job this fall.

Marvin Jones, Golden Tate and Anquan Boldin are the Lions' starting receivers, while TJ Jones, Jeremy Kerley and Andre Roberts are competing for probably two backup jobs, with a trio of undrafted rookies also in the mix.

NFL teams have until 4 p.m. Tuesday to cut their rosters to 75, and must be down to 53 players by 4 p.m. Sept. 3.

The Lions open the regular season Sept. 11 against the Indianapolis Colts.

Contact Dave Birkett: dbirkett@freepress.com. Follow him on Twitter @davebirkett. Download our Lions Xtra app for free on Apple and Android!