Detailed text transcripts for TV channel - MSNBC - 20150317:10:17:00
One week. votes for nfl defensive rookie of the year. this isn't some guy who took this lightly. he had a bright career ahead of him. made a lot of money and he said it's not worth it. i'm stepping aside right now. >> do you think we will see more of that? >> yeah. if you get a guy like this, he said he looked through a all the data. he's seen guys retired, seen what happens to him. i could have the world. i could own san francisco, but i'm not going to do it because i'm worried about my brain. >> that is a statement. >> remarkable story. still ahead on "morning joe," fresh off his first tri...