The altercation slightly contradicts the strong friendship the two have. Adams appeared on a podcast with ESPN's Zach Lowe late last year, saying Westbrook alerted him of his trade to the Rockets beforehand, and 'their friendship stretches further than business'.
Oklahoma City came from as many as 15 points down, and traded blows with Houston down the stretch, before ultimately winning by three points, extending the series to at least six games.
Westbrook is a possibility of returning for the remainder of the series, which will likely bring any spice from the sidelines onto the court.
Game five of the NBA playoff matchup is on Thursday.