ESPN host Stephen A. Smith has responded to criticism by former Red Sox pitcher Jonathan Papelbon - where the ex-MLB player accused the sports personality of racism.

Papelbon claimed that Smith was 'fake' and that he says things just to get views, after the ESPN host questioned Angels star Mike Trout getting injured.

The former pitcher also said that the reporter was once banned from the Philadelphia Phillies' clubhouse for trying to look through the manager's door.

Smith responded on his podcast, in a lengthy rant where he addressed each of Papelbon's main claims.

'What do you mean I was thrown out of a Major League Baseball clubhouse,' Smith said. 'I have been a reporter and a sports commentator for 30 years. 

Stephen A. Smith has responded to ex-MLB star Jonathan Papelbon, who labeled him a racist

Papelbon, a former Phillies pitcher, said that Smith was kicked out of the locker room in Philly

Papelbon's comments came after Smith openly questioned an injury to Mike Trout

'That has never happened in any sport. I've never been thrown out of a locker room. I've never been thrown out of a clubhouse. … That is a lie.

'Now, I could sue your ass for lying, telling such a lie like that. But I won't. I won't waste my time.'

Smith continued: 'I think that when people bring up the word racist, if they looked at you and I sitting together, I think they would look at you before they looked at me,' 

'I've never talked about you. You're irrelevant. At least until today.'

'And because I mention that, you would go on the air, Papelbon, knowing nothing about me, and you would call me a racist,' Smith also said. 

'I'm a black man. We have a history of experiencing racism. And a lot of times, those experiences come courtesy of people who look like you. And I would never think to call you a racist. 

'What you said is wrong, is irresponsible, is petty, and if it was to get a reaction, it's desperate. Because now that you don't have your playing career to lean on anymore, I guess you need help in other areas.

'That's about the most you're gonna get from me. Be a grown-up, bro. The things that you said about me sound like a damn racist, and I still wouldn't call you that unless I was sure.'