Heat's Chris Bosh 'feeling good'; no update on condition

MIAMI -- Heat forward Chris Bosh, who has been out since the All-Star break as he continues to seek medical evaluations for a condition that threatens to sideline him for the rest of the season, tweeted Saturday that he is "feeling good."

Bosh posted the tweet in response to a fan who had tweeted, "get well soon CB." Bosh replied: "feeling good! Feeling Great!"

He also said he worked out Saturday and that it went well, though he made no reference to his health status.

Heat coach Erik Spoelstra said Sunday that Bosh will work out with the Heat's staff, but away from the rest of the team.

"He's staying engaged and he's in great spirits. And that never surprised me with CB," the coach said, according to the South Florida Sun-Sentinel.

Bosh, 31, was ruled out of the All-Star Game with what was described as a calf strain. Multiple league sources have confirmed Bosh's condition is more serious than the strain, but team officials have declined to provide specific details.

This is the second time in as many years that Bosh's season has been interrupted by a health scare. Last season, Bosh missed Miami's final 30 games to treat a blood clot that had traveled to his lungs.

The Associated Press contributed to this report.