LeBron James knows a thing or two about monster dunks. The four-time NBA champion has thrown down dozens of vicious slams throughout his 18-year career. That's why when he reacted to Gary Payton II's throwdown for the Golden State Warriors at NBA Summer League, you best believe we were all looking for the clip.

Check out this monstrous dunk from the Warriors guard:

Thank goodness it was Mark Jones on the call for this one. That poster jam certainly deserved an emphatic reaction. Payton finished the game with 13 points, but none more eye-popping than those two right there. The Warriors guard even pumped LeBron James up:

The Warriors have been enamored with Gary Payton II for a while now. He had signed a couple of 10-day contracts with Golden State last season before being locked up for the rest of the year. Payton played in just 10 games for the Dubs, with averages of 2.5 points and 1.1 rebounds in only four minutes of action.

The fact that he generated 0.6 steals in that span is impressive. If he were to make the Warriors' active roster this season, it will be thanks to his defensive prowess. But as he showed in NBA Summer League, don't sleep on his high-flying dunks.