Enzo Maccarinelli has suffered only two defeats in a 30 fight career
Enzo Maccarinelli is still in the dark over when he will return to the ring.
The Welsh cruiserweight has not fought since losing his WBO world title to David Haye in March.
Maccarinelli, 28, had been due to make his comeback in July against Jonathon Banks, but that date was put back to September and now it has changed again.
"It's massively frustrating. I was meant to be boxing in July, and then September but I'm professional and know these things do happen," he said.
Maccarinelli is desperate to make amends for his second-round knockout defeat by Haye at the O2 Arena.
And he will have an opportunity to make up for that loss when he takes on Banks for the WBO title, which Haye vacated in order to move up to heavyweight.
IBO champion Banks is number one in the World Boxing Organisation rankings and will be paid 60% of the $450,000 purse (£227,000) for coming to fight in the UK.
Maccarinelli, from Swansea, is now hoping for an October or November showdown in Cardiff.
"Frank Warren and Sports Network have won the fight and they are discussing TV dates for when the fight can take place," said Maccarinelli.
"No venue has been set either and the September date definitely won't be happening.
"I'm guessing because it is a Frank Warren fight it'll be in Cardiff but again nothing is certain."
He added: "It's been a long time since I last fought and I just want to get back in the ring.
"I've been fit and ready since July, and Jonathan Banks is going to get the end of my frustration. He's going to get knocked out."
I've been fit and ready since July, and Jonathan Banks is going to get the end of my frustration
Maccarinelli admits he still regularly watches the tape of his defeat to Haye. It was only his second ever defeat in a 30 fight career with the other coming against Lee Swaby in 2000.
The video of the Haye fight acts as perfect motivation if he ever has a bad day at the gym - which is rarely with trainer Enzo Calzaghe always keeping his men on their toes.
He said: "My last fight I got caught and I could have sat back and moaned about it, but I didn't and I can't wait to get back in he ring.
"I watch the Haye fight every day. I watched it the next morning, and every day since. That drives me on training if I'm ever having a slack day. People have told me to let it go, but I can't.
"It just spurs me on. It's unbelievable motivation."