When Austin Carr came to Northwestern, he was little more than a footnote on recruiting projections. Carr’s ascension from walk-on to Biletnikoff Award finalist has been well-documented, but now another challenge stands in his path: the NFL Draft. After a season in which he led the Big Ten in receptions, yards and touchdowns — the first two by wide margins — the Bencia, CA native was not invited to the NFL Scouting Combine. He participated in drills at the Northwestern pro day, but, in all likelihood, will have to sign as a UFA and compete to make the back end of a roster over the summer.