Richardson's long-term health becoming a concern after Colts QB leaves 2nd straight game - The San Diego Union-Tribune
Richardson scores twice before leaving with concussion as Colts beat Texans 31-20
2010 San Diego State Football Media Guide by Peggy Curtin - Issuu
Complete guide to Week 3 of the NFL season
2021 Eastern Washington University Football Fact Book (posted July 22, 2021) by Eastern Washington University - Issuu
Richardson scores twice before leaving with concussion as Colts beat Texans 31-20 - Newsday
Richardson scores twice before leaving with concussion as Colts beat Texans 31-20
2015 Houston Football Bowl Guide by David Bassity - Issuu
V23 Iss 17, PDF, Dallas Cowboys
2019 Eagle Football Fact Book by Eastern Washington University - Issuu