Running back Nick Chubb has announced his retirement from the NFL on Friday, he announced via Instagram. Chubb played eight seasons in the league, competing for both the Cleveland Browns and the Houston Texans. "Twelve year old me could never imagine this day, and 30 year old me is wondering where all the time has gone. I've known for some time now, but I'm finally ready to share that I'm done playing football," Chubb wrote on Instagram. "I wanted to end my career on a healthy note, and I was able to do that." The 2018 second-rounder instantly made his mark in his rookie year with Cleveland. C...