Interesting situation today

Today during one of my games we had an interesting situation come up, I was the AR 1 and this was on the other end of the field so some details may be missing. This was an ECNL U14 matchup During an attack in the box the ball went out of bounds for corner kick and one of the attacking players ended up on the ground. No foul happened/was called but during the time it took to get the ball and start the game again a defender told the player who was still on the ground “Sit down boy”. What complicates this is that the person he was talking to was black. The AR1 heard this and stopped the game to talk to the center about it. The center then talked to the player for about a minute. Again, I was across the field so I didn’t hear the talk but apparently it was kind of an educational discussion. At the end the player made some type of argument about how everybody out there were boys so he could call whoever that. (??) In the end no cards were given and nothing more came from this. I’m curious though, what would you guys have done? The player didn’t mean it in “that” way if that makes sense.