College Gameday host Rece Davis addressed Johnny Manziel failing to show up for duty when the ESPN broadcast touched down at the former quarterback's alma mater over the weekend. Manziel, 33, was a no-show as the Gameday celebrity guest picker before the College Football Playoff game between Texas A&M and Miami on Saturday, December 20. Without any explanation, Manziel - who won the Heisman Trophy at Texas A&M in 2012 - was replaced by NBA star Alex Caruso.