David Haye has urged Anthony Joshua to focus on himself following Jarrell Miller’s adverse findings. 

The undefeated British boxer was due to face Jarrell “Big Baby” Miller at Madison Square Garden on June 1, but the American’s promotional team has asked to provide further information from VADA.

Since retiring from boxing, Haye has taken on the role as Dereck Chisora’s manager and he has chucked his client’s name in to the ring if Miller isn’t able to fight. 

"For me, obviously I got a call from Dereck Chisora this morning, who has a fight this Saturday, and he said 'Listen, chuck my name into the hat, I'd love that opportunity. I'm a prizefighter, I'm 35 years-old, I've shown against Dillian Whyte that I have what it takes at the highest level'.”

Miller, a former kick-boxer, was suspended in 2014 for nine months by the California State Athletic Commission when a urine sample was found to contain Methylhexanamine.

AJ will be looking to defend his IBF, WBA and WBO heavyweight belts against Miller as he fights in the US for the first time. 

Eddie Hearn, the director of Matchroom Sports and Joshua’s promoter, tweeted a confirmation about the findings.

“We have been informed by VADA that there has been an adverse finding in Jarrell Miller’s sample collected on March 20th, 2019. We are working with all relevant parties and will update with more details soon. AJ’s preparation continues for June 1st at MSG.”

Haye has had his own preparations disrupted ahead of fights before and has some advice for the Hertfordshire-born boxer.

"It's very difficult. I've had it in my career when you've had a last-minute switch," the Hayemaker told Sky Sports News.

"All your sparring partners are geared up to be like Miller. For all he knows, he fights someone five inches taller, and a southpaw, you don't know what he's going to do.

"What he needs to focus on is just focus on himself, to be the best Anthony Joshua possible, train hard, stay focused.

"He's going to have someone in the ring with him on June 1, hopefully we can just get someone in the ring who isn't going to be on the big stage for the first time.

"He needs an opponent who has been out there and has performed on the highest level, and there are a few names out there. There's not many, but there's a few names out there that would get people excited."

AJ puts all of his belts on the line and will be looking to use his next fight as a potential stepping stone to perhaps a unification fight with fellow heavyweight boxer Deontay Wilder.