Dallas Mavericks guard Delonte West has been suspended for conduct detrimental to the team,  Mavs coach Rick Carlisle said.

Carlisle did not specify a timetable for West’s suspension.

Sources told ESPNDallas.com that West’s suspension stems at least in part from an outburst in the locker room after the Mavs’ 123-104 preseason win Monday over the Houston Rockets. He had 2 points, 2 assists and 1 rebound in 16 minutes during the win.

West tweeted later Monday: “Sorry moma…” and “I showed off on ur birthday again…”