Colin Kaepernick submitted the worst game of his career against the Cardinals.
He took full responsibility.
"Today was 100-percent my fault," the 49ers' quarterback said after the game. "There’s nothing anyone in that locker room could’ve done to change that game today the way I played...
“(It’s) very hard for me to deal with. Very hard to see myself go out and play like that and hurt this team the way I did. I nullified all the efforts of every other player on that field today. That’s something I have to fix.