.@Titans QB Marcus Mariota went through an extensive on-field workout roughly 3 hours before today’s kickoff @NissanStadium. With his reps more limited this week with QB change, I imagine this was a chance for him to get extra throws. But also speaks to his work ethic. pic.twitter.com/VZW1f1WU2S

— Jim Wyatt (@jwyattsports) October 20, 2019