Sleeper: Houston OT Sebastian Vollmer 11:00 AM Wed, Mar 25, 2009 | Permalink Rick Gosselin E-mail News tips One of the most intriguing offensive line prospects in the 2009 NFL draft is All-Conference USA left tackle Sebastian Vollmer. He allowed only one sack in 610 pass attempts by the Cougars last season. But Vollmer is still learning how to play both his position and the game of football. He was born and raised in Germany but played American football there on a two-time national champion. He was lightly recruited by American colleges, garnering scholarship offers from Houuston, Indiana, Louisiana Tech and Western Michigan. Vollmer redshirted in 2004, played some tight end in 2005 and then missed 2006 with a back injury. He returned as a tackle in 2007 and started his final two seasons to put himself on NFL draft boards. Vollmer was not invited to the NFL scouting combine but did play in the Texas vs. Nation all-star game where he attracted the attention of scouts. His coaches flipped him from the left side to right offensive tackle and that's where his future lies in the NFL -- on the power side. He's a giant at 6-7, 315 pounds. His arrow is pointing up and, on a thin tackle board, he could find himself in the middle rounds of this draft.