Ann Arbor — Graham Glasgow knows a few things about feeling undervalued as a football player.

After all, he was not highly recruited out of Marmion Academy in Illinois, and along with younger brother, Ryan, were walk-ons at Michigan, rising through the ranks to earn scholarships and starting jobs.

“I was a zero-star tackle in high school,” Graham Glasgow, a center, said. “I didn’t have a Rivals (recruiting) page until the seventh week of my senior season. I wasn’t invited to any of the big things. Wasn’t highly publicized at all.”

He played two years on varsity and was being recruited by Jerry Kill, then coach at Northern Illinois. When Kill moved to Minnesota, he continued to recruit Glasgow, and then other Big Ten schools started to pay attention.

Then, Graham and Ryan, a defensive lineman, wound up at Michigan.

And here Graham is today, the little recruited offensive lineman on the brink of being selected in the NFL draft. Most projections have him going in the third or fourth round.

“I wasn’t as high on him as some who were raving about him were,” ESPN draft analyst Mel Kiper said during a conference call. “I have him right now in terms of center position, some think he’s two, I have him four. Ryan Kelly, Alabama, Nick Martin, Notre Dame and Max Tuerk, USC, then Glasgow, who has graded out more as a fourth-round pick.”

Glasgow said he has intentionally stayed away from reading or listening to draft projections.

“I didn’t know how many people thought I would end up being drafted before the start of this season,” Glasgow said. “I think I’m the best center, but that’s just my opinion. We’ll see what the teams think.”

Glasgow hope his postseason scouting opportunities show teams his worth.

He participated in the East-West Shrine Game and had such a good week he was invited to the Senior Bowl. Then he was invited to the Combine.

Glasgow found he not only measured up to the other centers and guards, but he also felt he was ahead of them.

“I’ve watched some of their film, I’ve played with them at the Senior Bowl,” he said. “I guess you can never really truly compare, but I’ve watched their film and I think they’re good players, but I think I’m better.”

Glasgow visited Detroit, Indianapolis, Atlanta, Tampa Bay and Houston, and participated in a local day with Chicago — and felt all the teams were “pretty interested.”

They also all asked about two alcohol-related arrests, the second for violating probation. But he hasn’t had a drink or legal issue since.

But it’s on the field he has no issue.

“They have nothing but positive things to say that I’m a hard worker and I learn well,” Glasgow said of comments coach Jim Harbaugh and offensive coordinator/line coach Tim Drevno shared with teams. “The system we had here and the stuff they had me learn is something that I can carry over to the next level that a lot of other people haven’t been exposed to and I think that’s a positive for me.”

And being positive is key — especially at this stage.

Glasgow wears a Lokai bracelet on his left wrist, given him by his agent, Jim Ivler of Sportstars in New York. The bracelet of clear beads features a solid white bead that carries water from Mt. Everest, and the black bead contains mud from the Dead Sea. Its purpose is to encourage the wearer to be humble during the highs and hopeful during the lows.

“People tell me you have to stay balanced,” Glasgow said.

After Michigan’s pro day, Glasgow said he figured he would play “Call of Duty” during the draft and not pay much attention.

Plans have changed — he will be joined in Ann Arbor by family, friends and teammates and watch the draft.

“It really is coming to a close,” he said. “It’s been a long four months, but it’s gone pretty quickly. I’m ready. ... I’m pretty confident in the type of player I am and how hard I work.”

Twitter: @chengelis