But when Wisconsin and Defensive Line Coach Charlie Partridge first surprised Adeyanju with a scholarship offer, the Badgers needed to find an edge in an area that had not been successful in the recent recruiting cycles.
So Partridge wrote the number of another Chicago-area native down for Adeyanju, a number that has led to many follow-up phone calls.
"I've talked to O'Brien Schofield and it's great talking to him," Adeyanju told Badger Nation. "I mean, my brother is in the NFL, but OB gives me a lot of advice about what he did his senior year, about the coaching at the college level and about the school. He's a great player and a real great guy."
Schofield, a fourth round selection by the Arizona Cardinals in 2010, and Adeyanju share more in common than just a city. Both are promising defensive ends, as Schofield finished the regular season with 22.5 tackles for loss and Adeyanju was rated a three-star athlete and the No.56 defensive end in the country by Scout.com.
As a junior Adeyanju notching 42 tackles, 16.5 sacks, one forced fumble along with two fumble recoveries.
"OB tells me what he learned at Wisconsin and that it's a real good school to learn and compete at," Adeyanju said. "Still, he said I should look at all my options."
And options Adeyanju has, plenty of them from all over the country. Up to 22 offers after Cincinnati and Syracuse offered, Adeyanju has offers from Arizona, Colorado, Illinois, Indiana, Iowa State, Michigan, Minnesota, Nebraska, Northwestern and Vanderbilt to name a few.
"I just thank God everyday," Adeyanju said. "The weirdest part is these schools offering me out of the blue. My film will get sent out and later on, my coach gives me a letter telling me about a new offer from a school I haven't talked to yet. It's just a crazy process."
Illinois was Adeyanju's first scholarship offer last January but he admitted that Wisconsin's offer was the most surprising. After the shock has wore off, the Badgers have become one of his favorites.
"I've been real excited by the offer because I remember back in December sitting at my house watching their bowl game," said Adeyanju of UW's victory in the Champs Sports Bowl. "I see them just dominate Miami. They just play really well. Wisconsin is definitely a great school and I am considering them."
Adeyanju has taken visits to Illinois, Northwestern and Purdue for spring practices and visited Minnesota in mid-May. On the way home, Adeyanju saw the Madison Capitol building but that's the closest he has come thus far of seeing the city since UW had offered him in person during February's Junior Day.
"When I was up there, the campus was really nice," Adeyanju said. "It kind of sucked because the lake was frozen up, all the leaves were off the trees and it was cold. One of my coaches told me that the campus was really nice in the summer."
Based on that recommendation and the constant contact from UW's coaching staff, Adeyanju plans a summer visit back to Wisconsin.
"I keep in contact with all the coaches (at Wisconsin)," Adeyanju said. "They all send me a pack of letters, but the person I talk to the most is Chris Ash, my recruiting coach. I talk to him almost every week along with my position coach, Coach Partridge. I've also talked to Coach Bielema three times, so I have a real good relationship with everybody over there."
Adeyanju plans on taking all five official visits before making his decision, one he slates to come sometime in December. First, Adeyanju has to cut down a massive offer list, one he obviously said will be a hard chore.
"I want a place when I get a good education and has solid academics," Adeyanju said. "To me, the deciding factor will be that and the people. I want to go to a close football family and have a coach that will take the time to develop me into the best player I can be."