NBA discipline executive Kiki VanDeWeghe handed down the fine Thursday.
It stems from an incident that occurred Tuesday night in the third quarter of the Timberwolves’ 118-91 win over the Suns.
The Timberwolves led 82-62 with 5:24 left in the quarter when Booker and Dieng got into a brief altercation, with Booker getting knocked down and responding with a hand to Dieng’s face. Things got heated between the two and Booker tried to meet Dieng in the foul.
After a video review, both were ejected.