Cleveland - Ellie Day, the wife of Australian golf star Jason Day, had concussion symptoms on Friday but was out of the hospital after being fallen upon by LeBron James while sitting courtside at an NBA game.
Day, who gave birth to the couple's second child last month, was taken out on a stretcher after James tumbled into her while chasing a loose ball in the fourth quarter of Thursday's 104-100 victory over Oklahoma City.
"Ellie Day I hope you're doing okay! My apologies! Hope u guys come back to another game soon. Love LJ!" James tweeted Friday.
The wife of the 2015 PGA Championship winner was kept overnight for observation at Cleveland's MetroHealth Medical Center before being released after being knocked onto the floor by the NBA superstar while sitting beside her husband along the sideline.
A statement from Jason Day's agent, Bud Martin, said Ellie Day has been suffering from "concussion symptoms" and added, "She is resting comfortably and appreciates all of those who have reached out and are concerned about her.
"She wants to send a special thanks to her doctors, the emergency medical staff and the entire Cleveland Cavaliers organisation who helped her through this ordeal.
"Finally, no hard feelings toward LeBron: He was just doing his job. Go Cavs."
James saved the ball from going off the court but only by hurling himself beyond the boundary and head-first into Ellie Day.
"It wasn't anything out of the usual besides the injury," James said. "But to me, obviously her health is very important and hopefully she's doing well. The guys told me she's doing great. I was going for a loose ball. Just trying to keep a possession going and I hate that was the end result of it."
The game was halted briefly while Day's neck and head were stabilised and she was stretchered out, her husband joining her for the ambulance ride. James checked on her status during the next stoppage in play.
Despite the incident, James said he thinks courtside seats are wonderful for spectators.
"I think it's a great experience for our fans," James said. "I mean that doesn't happen much. It's unfortunate it happened tonight but that doesn't happen much. Sitting courtside, it's all part of the game. It's pretty cool."
The Days, who live in nearby Columbus, have attended several games recently. Jason chipped foam basketballs at spectators as part of a team promotion a few minutes before his wife was injured.