As expected. It is just a minor sprained ankle, nothing too serious. He can play in a week or two. Some just can't stop overreacting to simple injuries of superstars.
The overreaction by the fans shows how they feel for the young star player, they want to see him play because they are hopeful that Mavericks will be successful this season in making to the playoffs, and of course when they are on the playoffs they will not be just a heavy underdog as Luka is doing magical things that could give their team a possibility to upset a heavy favored teams.