Shawn Porter and Terence Crawford have wished welterweight rival Errol Spence Jr well amid reports the IBF and WBC champion has been involved in a serious car crash.

Spence, who successfully defended his belts in a thrilling showdown with Porter in Los Angeles last month, was said to have been taken to hospital following the incident in Dallas on Thursday.

A widely reported statement from authorities appeared to confirm further details, with an unnamed driver ejected from a Ferrari as it veered over the central reservation of a dual carriageway while travelling at high speed.

Premier Boxing Champions, who represent Spence, are yet to confirm the 29-year-old was the person involved.

Omnisport has contacted PBC and the Dallas Police Department for comment.

Porter posted on Twitter: "My dad always tells me, 'This boxing thing is a part of your life but it's not going to last forever. You still have a lot of life to live after that'.

"With that, I'm praying for @ErrolSpenceJr and his family because he has a lot of life to live and I pray he recovers quickly and fully."

WBC king Crawford has been involved in a public back-and-forth with Spence concerning a potential unification bout, but he sent his best wishes on Thursday.

"Praying for you champ, @ErrolSpenceJr," he wrote on his own social media page. "Get well. We fighters - I know you will."

Kell Brook, who was dethroned as IBF champion by Spence in 2017, posted his own message, writing: "Get well soon champ! Thoughts are with you and wishing you a full and speedy recovery."