After being raced to the hospital by Callum Smith KO, Lenin Castillo is given the all clear.

After his brain scan on Saturday night, LENIN CASTILLO was given the all clear.

Callum Smith brutally knocked the boxer out. The doctor rushed him to the hospital, but fortunately he has been cleared.

After Castillo's second round defeat, fans and commentators at the Tottenham Hotspur Stadium were shocked into silence.

Castillo's legs were shaken as he hit the deck. The medics quickly rushed to the ring and treated him.

As he was being rushed to the hospital, he was given oxygen. He was able to receive a positive prognosis.

Dan Rafael, a journalist, tweeted: "I texted Lenin Castillo’s manager to check on Lenin's progress after Callum Smith's KO.

"Here is the reply I got overnight: He was released after a few minutes. They performed a brain scan. Everything went well. He is now at the airport.

"Good news."

Sky Sports commentator Matthew Macklin, a former boxer, admitted that he'd never seen anything like it before.

Smith was making his debut as a light-heavyweight fighter and was expected to defeat Castillo in the undercard fight to Anthony Joshua's loss to Oleksandr Uzyk.

He delivered with a crushing right-hand that instantly ended the contest.

The North London crowd booed when Castillo became clearly unwell on the canvas.

Referee Bob Williams quickly moved Castillo to the recovery position.

The 33-year old Dominican Republic boxer was then taken to the hospital by ambulance.

Joshua Vs Usyk LIVE See all post-fight reactions

Although Smith's win was not as important, it was a great performance by the Liverpool fighter coming off his first defeat against Canelo alvarez.

Smith was accompanied by Buddy McGirt, his new trainer. Smith drove his long levers into McGirt a few times in the opener. He showed no signs that he had sustained any permanent damage from the beating Canelo dealt to his lead arm.

Smith, 31, was able to connect with his victim with a powerful right hand and left him in a very worrying place.