Mark Clayton is a former All-Big 12 and All-American receiver at the University of Oklahoma where he played from 2001-2004 after graduating high school from Arlington Sam Houston where he was a standout athlete. After his highly-touted career at OU where he was a Biletnikoff Award finalist as one of the top receivers in the country, Clayton was drafted by the Baltimore Ravens in the first round of the NFL Draft in 2005. He played six years in the NFL for the Baltimore Ravens and St. Louis Rams. He retired from the NFL in 2013 and has joined The Quarterback Ranch to develop our receiver training program. Mark also is a successful entrepreneur.