Cleared heavyweight boxer Lucas Browne is angry.
And the Australian has vowed to take out his frustrations on his next opponent when he attempts to re-write the record books again.
Browne became Australia's first heavyweight boxing champion in March when he beat WBA world champion Ruslan Chagaev in a 10th-round stoppage thriller in Chechnya.
But Browne was stripped of that honour and also handed a six-month suspension after testing positive for the weight control drug clenbuterol in the aftermath of his win.
Browne maintained his innocence throughout the ordeal, pointing to the fact he had tested negative for clenbuterol just five days before the fight.
And earlier this week the WBA finally agreed, clearing Browne of any wrongdoing.
The WBA ruled that it was unlikely Browne intentionally or voluntarily ingested clenbuterol in the days leading up to the bout because the amount would not have given him any advantage.
Despite the ruling, Browne wasn't re-instated as the WBA champion.
Instead, he'll have to win back the vacant belt the hard way - by beating US-based Puerto Rican Fres Oquendo.
The fight will take within the next four months, and it could be held in either Melbourne or China.
Browne is relieved to have been cleared of doping, but said the ordeal had taken its toll.
"To be perfectly honest, I'm slightly pissed off and I really want to do some damage to the next person," Browne told reporters in Perth.
"I want to come out and show everyone I'm the world champion. It's going to hurt.
"Technically I was Australia's first heavyweight champion. I'm not sure if that stands to be honest.
"I'd like to make history again."
As for how the clenbuterol got into his system? Browne has his suspicions.
"I was given a steak the night before, at the weigh-in. So I'm assuming it's that," Browne said.
"But it's speculation."
Luckily for Browne, it was easier to prove his innocence because clenbuterol is a drug that was more likely to have harmed his prospects of winning, rather than helping him.
"It doesn't do anything for me," Browne said.
"It actually makes your heart go three times faster. So for me to have something like that in my system for a world title fight over 12 rounds is pretty stupid to be honest."
