LeBron James tweets support for Chris Bosh

LeBron James posted messages on his Twitter account Friday expressing support for former teammate Chris Bosh.

LeBron James posted messages on his Twitter account Friday expressing support for former teammate Chris Bosh. 

It is feared that the Miami Heat forward could have blood clots on his lungs, which would force him to miss the rest of the season. Bosh reportedly is set to undergo further testing at a hospital on Friday.

James, who joined the Cleveland Cavaliers this summer after spending four seasons with Bosh in Miami, tweeted that his heart is "heavy right now thinking about @chrisbosh health!"

Man my heart real heavy right now thinking about @chrisbosh health! Especially after hearing about Kersey the other day. My prayers are....

— LeBron James (@KingJames) February 20, 2015

out for u and your family my brother! Here for you throughout this if needed. #BandOfBrothers #BiggerthanBasketball

— LeBron James (@KingJames) February 20, 2015

Wish I could be there by your side this very moment to tell a joke or something homie. Just to get your mind off what you're going through!

— LeBron James (@KingJames) February 20, 2015

But I know you're strong and will come back better than ever on and off the court. #PrayForCB

— LeBron James (@KingJames) February 20, 2015

In the first tweet, James references former NBA player Jerome Kersey, who recently passed away at the age of 52.

Bosh re-signed with the Heat on a five-year, $118 million contract in July. Over 44 games this season, he has averaged 21.1 points and seven rebounds while earning his 11th All-Star appearance.

• Report: Chris Bosh could miss rest of season