Watch Marcus Smart nail a half-court shot while lying on his back

The biggest surprise of Marcus Smart's rookie season was definitely his outside shot. The then-20-year-old made 33.5 percent of his threes on over four attempts per game. The accuracy isn't reminding anyone of Stephen Curry, but it's much better than most expected. 

This brings us to Tuesday, at a Texas high school gymnasium where Smart was helping run a camp. 

Aaaaaand scene. That outside shot is officially a worry no more.

Photo Credit: David Richard/USA TODAY Sports