Former Pitt receiver Manasseh Garner went unselected but signed as a free agent with the Kansas City Chiefs following this year's NFL Draft. His time there was short, but Garner will get another shot to play in the pros as he was signed by the Cleveland Browns this week.
I'm not sure where Garner will play, but the article linked above calls him a tight end. SB Nation's Browns site, FWIW, thinks he may play at fullback, the position he played with the Chiefs before being let go.