LeBron James speaks out for first time since son Bronny James' cardiac arrest

LeBron James shared what sounded like a positive update about his son's health, three days after 18-year-old Bronny James suffered a cardiac arrest while practicing with his college basketball team at the University of Southern California. 

The update, which Lebron posted to Twitter early Thursday, was the NBA star's first public statement since the incident. (Twitter started rebranding itself at the end of July as it shifts to its new name, X, although the platform still allows users to "tweet.")

"I want to thank the countless people sending my family love and prayers. We feel you and I'm so grateful," he wrote in the tweet.