McCarthy’s calm demeanor disappears between the lines, replaced by an alter ego teammates swear is the real deal.

CBS Sports is a registered trademark of CBS Broadcasting Inc. Commissioner.com is a registered trademark of CBS Interactive Inc.

By day, he’s a mild-mannered 22-year old, but when J.J. McCarthy puts on his Minnesota Vikings uniform and steps onto the ...

Sunday, 1 p.m. EST, Fox. BetMGM NFL Odds: Ravens by 4 1/2. Against the spread: Ravens 3-5, Vikings 4-4. Series record: Ravens lead 4-3. Last meeting: Ravens beat Vikings 34-31 in OT in Baltimore on ...

The real mastermind, according to the 22-year-old quarterback, is his edgy alter ego, Nine, who scored three touchdowns in ...

In a game that the Minnesota Vikings weren't expected to win, according to many, J.J. McCarthy arguably played his best game ...

The video below is from Kevin O’Connell’s postgame speech after the Minnesota Vikings’ 27-24 win over the Detroit Lions on ...

McCarthy is not dog or wolf; his authentic state is both, and it is remarkable that he is able to both use it and articulate ...

The Vikings' announcement of an impressive feat by Kevin O'Connell has a downside that is of serious concern for J.J.

Dallas Cowboys defender Marshawn Kneeland was found dead after a police vehicle pursuit Thursday in Frisco, Texas, the local ...

Minnesota Vikings quarterback J.J. McCarthy divulged this week that an alter ego has been helping him succeed during his ...

McCarthy's has intense gameday demeanor has been celebrated in Vikings postgame locker room videos and mocked on social media ...