Nike's newest ad 'Come out of Nowhere' with LeBron James celebrates and encourages all the underdogs to believe in themselves.
LeBron repeatedly says "you're not supposed to..." but that doesn't stop any of the athletes featured in the ad from playing the game. All of them are athletes who weren't "supposed" to escape their neighborhoods or even go pro, and all of them are wearing LeBron's number 23. The ad finishes with a cameo by James as he walks out onto the basketball court.
While the ad encourages all NBA hopefuls to keep pursuing their dreams, it also speaks to the Cavaliers being the underdogs in last year's NBA season and winning anyway. The ad debuted the same night as the Cavaliers season opener against the Knicks.