Retired NFL defensive end Isaac Rochell admits that training for a marathon is "way harder than football" as he prepares to run the Chicago Marathon with a target finish time of 3:15.
"I went from wearing this jersey [NFL shirt] to this jersey [marathon bib]."
Rochell, 29, spent seven years in the NFL playing for the Chargers, Colts, Browns, and Raiders. After announcing his retirement from football, he has found a new challenge in marathon running.
Author's summary: Retired NFL player Isaac Rochell takes on marathon challenge.