Heat's Mike Miller sidelined with thumb injury

 A freak injury to Mike Miller's right thumb is expected to keep one of the NBA's top 3-point shooters sidelined for several weeks, yet another blow to the injury-prone Miami Heat.

Miller was injured when the thumb on his shooting hand got tangled in a teammate's jersey during practice Wednesday. The Heat have not revealed a formal diagnosis or possible recovery time, only saying that more tests were scheduled on Thursday, and teammates reacted with ominous concern.

"They say it's not season-ending," Heat forward Udonis Haslem told the South Florida Sun-Sentinel in Atlanta, where Miami plays its next-to-last preseason game Thursday night.

Oddly, there was a slew of good news for the Heat on injury fronts Thursday. Guards Mario Chalmers (ankle) and Eddie House (shoulder) were deemed healthy enough to play against the Hawks, and Wade has been cleared for full contact drills, Heat coach Erik Spoelstra said.

But the Miller situation may overshadow all that news.

Miller signed a $25 million, five-year contract with Miami this summer. He was the NBA's second-best shooter from 3-point range — 48 percent — last season and came to the Heat in large part because of the opportunities he could get playing alongside Wade, LeBron James and Chris Bosh.