After completing their rookie minicamp on Sunday, the Detroit Lions decided on Monday to fill the two open spots on their roster with tryout players. Specifically, the Lions signed safety Sam Proctor and wide receiver Wallace Miles.

Proctor, who played at Oklahoma, was originally reported as signing with the Lions following the draft. It turned out he was merely invited to the Lions' minicamp on a tryout basis, but he earned a contract this past weekend. Now there are indeed four rookies from the University of Oklahoma on the roster.

As for Miles, he is from North Carolina A&T. Although the Lions had previously signed three undrafted free agent wide receivers, they obviously liked what they saw from Miles enough to sign a fourth. He joins Patrick Edwards, Troy Burrell and Jared Karstetter as undrafted free agents at the position who have signed with the Lions this year.

Go here for a full list of the Lions' 2012 UDFA signings.

UPDATE: According to Tim Twentyman, the Lions need to release somebody to make room for these two signings. Unsigned pick Riley Reiff and franchise free agent Cliff Avril count against the roster, and apparently because he went on the non-football injury list last season, Jerome Harrison is still counting against the roster and did not become a free agent. As a result, the Lions need to make a move to avoid having 91 players.

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