Day's wife in scary collision with LeBron

Los Angeles - NBA superstar LeBron James collided with the wife of Australian golfer Jason Day in a scary sideline incident at a Cleveland Cavaliers home game on Thursday.

Ouch! Click to watch the collision

Ellie Day, sitting courtside with her husband, was stretchered off and taken to hospital after James, chasing a loose ball, crashed into her seat, both of them sprawling backwards to the floor.

The game was halted for several minutes as medical personnel attended to Day, with James and his Cavaliers team-mates looking on.

"It wasn't anything out of the usual besides the injury," James said of the incident. "But to me, obviously her health is very important and hopefully she's doing well."

"The guys told me she's doing great," James added, although there was no official word from the Cavaliers on Ellie Day's condition.

"I was going for a loose ball. Just trying to keep a possession going and I hate that was the end result of it."

Ellie Day was reported to be alert and talking as her husband accompanied her to an ambulance, but was to be hospitalised overnight for observation. She gave birth to the couple's second child, a daughter, in November.

Jason Day, 28, won his first major title at the PGA Championship in August, twice ascended to number one in the world rankings this year and won Australian sport's prestigious Don Award in October.

He and his wife, who have a home in Columbus, Ohio, were sitting courtside when the incident occurred late in the fourth quarter of the Cavaliers' 104-100 victory.

Cavaliers coach David Blatt said he had long been concerned about the danger of players like James, six-foot-eight and 266 pounds, colliding with courtside spectators.

But James said being close to the action was a "great experience" for fans.

"Sitting courtside, it's all part of the game," he said. "It's pretty cool. If I was a fan ... I would love to sit courtside and watch games."

Ellie Day I hope you're doing okay! My apologies! Hope u guys come back to another game soon. Love LJ!

— LeBron James (@KingJames) December 18, 2015