Question: Steven Levert "Steve" Clarkson (born October 31, 1961) is an American football coach, Clarkson has tutored Matthew Montgomery Barkley, an American football quarterback who is currently a free agent, born on which date?
Sentence (from "Matt Barkley"): Barkley has also played for the Arizona Cardinals, Chicago Bears and San Francisco 49ers.
Relevant evidence: No