Donovan Mitchell’s reaction to fan storming Barclays Center court during Cavs’ win Friday night

NEW YORK — Late in the fourth quarter Friday night, the unexpected happened inside Brooklyn’s Barclays Center.

And it wasn’t just a late-game run by the young Nets, who seemed completely overmatched earlier, trailing the star-studded Cavs by a game-high 25 at one point in the second half.