He may have been half a world away in Russia for son Tim's latest triumph, but Kostya Tszyu was definitely watching.
The young Tszyu cemented his growing reputation as one of the top super welterweights in the world, with a dominant fifth round win against Dennis Hogan in Newcastle on Wednesday night.
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As with most of his 18 professional fights - in which Tszyu remains unbeaten - Kostya was nowhere to be seen in the crowd and sadly, probably never will be.
The Aussie boxing great started a new life with a new wife in Russia and Tim admitted that having his "control freak" father ringside for his professional debut four years ago was about as much as he could take.
Although conspicuous by his absence, Kostya still follows every one of Tim's fights and spoke with his son after watching Wednesday night's impressive TKO victory from Moscow.
“Just spoke to him then,” Tszyu said of his father after the fight.
“I couldn’t really hear him too much, but he was pretty happy.
“He was on the channel in Russia, because they televised it there. You could tell he was happy.”
Kostya later responded to an Instagram post of his son's by posting to Tim: "Love you and so proud".
The 26-year-old Tszyu has faced trash talk throughout his career from rivals fighters claiming he is only a big deal because of his father's name.
Wednesday night's win provided further proof that the Sydneysider is ready for the big stage and a world title shot, but Tszyu says he's got a long way to go to emulate his dad.
“I’m not satisfied, I haven’t achieved anything in my eyes yet,” he said.
“My dad was an undisputed world champion for 10 years, what have I done?
“Again, give me a few years. I’ve got a long way to go, my comparisons and my goals are out of this world and that’s what I’m going to be striving for.”
Hogan's camp threw in the towel midway through the fifth round on Wednesday after the Irishman could no longer withstand an onslaught of head and body blows from Tszyu.
The victory extended the 26-year-old's undefeated record to 18 wins as he eyes a shot at the super welterweight world title.
Tszyu is the WBO's No.1-ranked challenger and is awaiting a crack at the winner of a likely battle between American Jermell Charlo and Argentina's Brian Castano.
"I'm not satisfied," Tszyu said.
"I want to be a global boxing star. That's my goal. It's always been my goal and I need those big guys.
"We're at that stage where I do believe I can compete with the big boys.
"Charlo got rid of Hogan in seven (rounds). I do it in five. So my pace was a bit more quicker than Charlo's.
"I want an international fight. I want to be recognised globally."
Tszyu extends unbeaten record in style
Tszyu, the son of former world champion Kostya but now forging his own stellar career, was overjoyed with his latest win.
He said he was only just warming up when the fight was stopped.
"I thought it was going to last a bit longer. I thought I'm going to slow him down even more but he started slowing down from round three," Tszyu said.
"I just slowly started picking it up and it was a mixture of body and head (that caused the damage) because the head shot was what dropped him.
"He was feeling every shot and it was only going downhill (for him). I thought I was picking it up every minute and it was just a matter of time.
"He was getting worse and worse and I think his corner did a good job.
"When I'm in the ring, this is my kingdom."
Sporting royalty was on hand as Tszyu, Australia's new superstar of the sport, strode into the ring to the tune of Queen's Another One Bites the Dust.
He lived up to his own billing with another masterful display of front-foot boxing.
There were concerns early, though, with blood streaming from Tszyu after a head clash in the second round.
But he kept coming, hurting Hogan with a mighty left uppercut in round three.
Tszyu had Hogan reeling again with another brutal series of left-arm blows in round four.
It was no surprise when another pair of heavy left-handers rocked Hogan in the following round, forcing the decision of the Irishman's camp.
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