... Minnesota Vikings have announced the retirement of defensive end Kenechi Udeze, ending his bid for a comeback this year with the club.

In February of 2008, Udeze was diagnosed with leukemia. And despite receiving a bone marrow transplant and being able, initially, to participate in OTAs, Udeze’s decision was mainly due to side effects associated with the treatment which hindered his progress.

The first-round draft pick by the Vikings was enjoying what was building up to be a rather impressive campaign with the club. Udeze recorded 117 tackles and 11 sacks in 47 starts as a Viking.

Bleacher Report - NFL