Second-year Minnesota Vikings quarterback J.J. McCarthy went viral on multiple occasions for the intensity he showed as he returned to the lineup and helped Minnesota earn a 27-24 win at the Detroit Lions this past Sunday.

Per Kevin Seifert of ESPN, McCarthy revealed on Wednesday that such antics are part of an alter ego he birthed as he spent his entire rookie season recovering from a full meniscus repair. He referred to this persona as "Nine," the jersey number he wears with the Vikings.

J.J. McCarthy has "built up anger" after not playing as a rookie

"It really kind of started to show up this year," McCarthy told reporters, "and it came about last year [while on injured reserve]. Just never had a full season where you want to be out there so freaking bad, but yo

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