As reported earlier this week, Oleksandr Usyk was forced to postpone his heavyweight debut against Carlos Takam after suffering a bicep injury.

The undisputed IBF, WBA, WBC, WBO cruiserweight champion was scheduled to face Takam in Maryland on May 25.

However, fans were hit with the bad news when promoter Eddie Hearn revealed on social media that Usyk will have to wait for his heavyweight bow following a setback during training.

According to Hearn, Usyk's return could very well take place on a date in August.

He expects the boxer to resume his training duties in five weeks or so.

The good news, if any, is that Usyk will not undergo any surgery for the injury.

"He tore his biceps. He's not having an operation. I think [he's] going to [return to the ring in] August or something like that. I think it’s five weeks until he can start training again," Hearn told IFL TV.

"I don’t know how it happened or why it happened. Obviously he’s moving up and he’s doing a lot more heavy duty stuff now. He’s sparring guys that are much bigger and heavier. I don’t know whether it was lifting or sparring [when he injured himself]... probably heavy duty sparring with big guys. It’s a real shame, because I was looking forward to that."

Ukrainian Usyk cleaned up in the cruiserweight division when he defeated Murat Gassiev in Moscow in July last year, before defending his titles against Tony Bellew in Manchester in November.

The 32-year-old, who holds a perfect 16-0 record, vacated his WBA cruiserweight title in March to pave the way for a step up.

Later this year, the WBO could very well name Uysk as the mandatory challenger to world champion Anthony Joshua, who also holds the WBA, IBF and IBO world titles.