Morgan State DT Armstrong to be available in supplemental draft

Morgan State defensive tackle Robert Armstrong, whose size and quickness might tempt a few franchises in need of interior line help, will be included in the NFL's supplemental draft scheduled for July 12.

Armstrong is the third known prospect whose application for the summertime draft, which is typically limited to "special cases" players, has been accepted. He joins Georgia cornerback Paul Oliver and Nebraska offensive lineman Chris Patrick. There will likely be a few more players, as well, in the supplemental pool.

A former Maryland defender, who transferred to Morgan State in 2006 after he was declared academically ineligible by Terps' officials, Armstrong will audition on Thursday for league scouts. About a dozen teams will be present for his workout.

In two seasons at Maryland, 2003-2004, Armstrong appeared in 23 games and registered 28 tackles, two sacks and four quarterback pressures. He missed the entire 2005 season, though, with a back injury, then ran into academic difficulties in 2006.

Rather that sit out a second straight season, Armstrong transferred to Morgan State, where he was eligible to play.

Appearing in 10 games in 2006, with nine starts, Armstrong recorded 15 tackles, but he had five sacks, including a three-sack performance against Norfolk State. Seven of his 15 tackles were for losses. Armstrong only flashed the ability to penetrate in spurts, but that and his size (6-feet-4, 308 pounds) has created some curiosity among scouts.

In addition to the past back problems, which must be checked out thoroughly, the other red flag with Armstrong is his advanced age. He will turn 24 on July 6 and that might be a factor in determining whether a team invests even a late-round choice in the supplemental draft.

Any team that selects a player in the supplemental draft will forfeit its corresponding pick in the 2008 draft.

Senior writer Len Pasquarelli covers the NFL for ESPN.com.