Irving had X-rays taken, and he underwent an MRI on Tuesday before the team charter left. Both tests were negative, and he's considered day-to-day.
His status for Saturday's preseason game is uncertain. Irving was using a walking boot as he left with teammates for sightseeing on the team's day off.
Irving tweeted Wednesday afternoon that his injury wasn't serious.
Just a sprained ankle from practice, in a walking boot for precautionary reasons. Not that serious, I'm all good.— Kyrie Irving (@KyrieIrving) October 8, 2014
Irving has missed 49 games with injuries over the past three seasons.
He led the Cavs with 16 points in their first preseason game this past weekend against Maccabi Tel Aviv.