Earlier this afternoon, head coach Rick Carlisle collapsed during a Dallas Mavericks practice. Luckily, everything seems to be okay now according to several tweets from NBA.com’s Art Garcia.

Rick Carlisle tells me he’s fine. No word on whether he’s traveling w/team today to Cali.

Rick Carlisle hasn’t been ruled out for Sat’s preseason game vs. PHX. Could still meet team in Cali if cleared by doctors.

Dwane Casey is likely to assume coaching duties if Rick Carlisle unable to make tomorrow night’s Mavs-Suns game.

There still aren’t any details on what actually caused him to collapse.