Shannon Briggs has told ESPN he has agreed a date to fight world heavyweight champion Wladimir Klitschko later this year.
Klitschko - the WBO, IBF, IBO and WBA champion - is set to make his 18th title defence against American Bryant Jennings at Madison Square Garden on April 25th.
However, former heavyweight titleholder Briggs claims he will then take on Klitschko in September, with Hamburg mooted as a potential venue.
"I have a date with Klitschko set for September, if not sooner," Briggs told Buncey's Boxing Podcast on ESPN.
"His people have confirmed that - we've got a date. We're looking at September. We're looking at Hamburg, but hopefully we can change that venue to somewhere in America.
"That's what we're working on. Hopefully it can happen, if not in September then July or August. I feel great, I'm in phenomenal shape. I'm looking forward to fighting soon."