
Tough guys don’t slide, so sometimes tough guys get decked.
San Francisco 49ers quarterback Colin Kaepernick ran for a first down early in Monday night’s contest against the Minnesota Vikings, but a freight train was waiting for him right beyond that yellow line.
It was called the Harrison Smith Express:

The Minnesota safety lowered his shoulder and absolutely smashed Kaepernick, putting No. 7 on his back in a hurry.
via http://bleacherreport.com/articles/2566789-vikings-harrison-smith-lights-up-colin-kaepernick-with-huge-hit-near-sideline