Miami Heat swingman Mike Miller was left behind Monday when the team departed for the three-game trip that opens Tuesday against the Orlando Magic. Miller sprained his left ankle in the second quarter of Saturday's overtime victory over the Indiana Pacers. "It is what we thought it was, it's a sprain and we'll have to see each day how he responds," coach Erik Spoelstra said after Monday's practice at AmericanAirlines Arena. "He's sprained it many times over the course of his career, so it'll probably be different for him than it is for other people. He's come back from sprained ankles pretty quickly before, so we'll just have to see."