When I was discussing his recruitment with Oklahoma three-star TE Reese Leitao this week he said there were no favorites in his recruitment but Duke was one of the schools he has a particularly strong relationship with. More on Leitao and his recruitment in the article below.
https://n.rivals.com/news/nebraska-offer-has-oklahoma-te-s-attention
https://n.rivals.com/news/nebraska-offer-has-oklahoma-te-s-attention
