Tuesday marks the NFL trade deadline , and while the same names have floated around for several weeks, there sometimes seems to be the one deal that seemingly comes out of nowhere.

That was the case four years ago, when the Carolina Panthers stunned the league and traded star running back Christian McCaffrey to the San Francisco 49ers.

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"It was a wild week. I got traded at around 11 p.m. East Coast time on a Thursday, and I remember sitting there with my wife thinking, 'This is insane.' I didn’t know I was getting traded," McCaffrey recalled in a recent interview with OutKick.

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San Francisco 49ers running back Christian McCaffrey (23) celebrates his touchdown against the Atlanta Falcons in the first half of an NFL football game, Sunday, Oct.…