O'Brien Schofield is an American football defensive tackle/ defensive end for the Arizona Cardinals of the National Football League. As a fifth-year redshirt senior for the 2009 Wisconsin Badgers he ranked second in the nation in tackles for a loss (TFLs) and second in the Big Ten Conference in quarterback sacks. For the 2009 NCAA Division I FBS football season, he earned several second team and honorable mention All-American recognitions by various publications. He was a first-team 2009 All-Big Ten Conference selection. He earned the defensive MVP award at the 2010 East–West Shrine Game, but was injured during practice for the 2010 Senior Bowl the subsequent week.