Wyoming quarterback Josh Allen became embroiled in controversy on the eve of the NFL Draft for using offensive language, including racial slurs, in several tweets made in 2012 and 2013 when he was a student at Firebaugh High School in California's Central Valley.

The N-word was used in some of the tweets, which circulated online late Wednesday night and were captured by Yahoo! Sports before they were deleted.

Allen apologized for the tweets, saying he was young and dumb, Wednesday night in a conversation with ESPN's Stephen A. Smith.

The Browns are expected to draft a quarterback first overall shortly after 8 p.m. Thursday, with Allen, Southern California's Sam Darnold and Oklahoma's Baker Mayfield the contenders. ESPN's Adam Schefter reported Thursday morning there is a mounting belief among head coaches and general managers throughout the NFL that Cleveland will choose Mayfield at No. 1.

Whether Allen's old tweets will affect when he's picked remains to be seen, but the organization that selects him must at least consider how he'll be received by his new coaches, teammates and fan base. Especially because he'll be counted on to become a face of a franchise.

An unnamed team with a top-five pick told Schefter it hadn't been aware of the tweets and had "never heard anything but positives" about Allen.