Fledging boxing professional Tim Tszyu did a good job on his debut, but still has plenty to learn and will get further tuition in Russia, according to his famous father Kostya.
Tim, 22, won all six rounds on each of the three judges' cards against Queenslander Zorran Cassady in front of several hundred people indoors at the SCG on Saturday.
Kostya, who won multiple light welterweight world titles, flew in from his birth country of Russia last Tuesday to support his eldest son.
He revealed he planned to take Australian-born Tim to his boxing training camp in Russia, after his son's second pro fight in February on the undercard of the Danny Green-Anthony Mundine fight in Adelaide.
"It's pressure for Tim. Everyone has expectations. Someone will say he was supposed to knock him (Cassady) out," Kostya Tszyu told AAP.
"He did a good job ... it was a good experience, six rounds to start with.
"He has a lot of things to learn. That's why after the February fight I want to take him to Russia and take him to my training camp and give him some little tips.
"Igor, his trainer, is here and I won't train him, but I will be his supervisor."
Tim showed glimpses of his dad's style while showing plenty of his own moves against Cassady, who went in to the fight with a 1-2-1 record.
"I picked someone who wasn't a walk in the park, who could test me out. He was tough," Tim Tszyu told AAP.
"First fight there was a bit of pressure. It was all over the media, a big crowd came.
"It was something I've never ever done, but you've got to adapt to these things.
"Again, Mundine and Green will be good exposure. It will be a good atmosphere."
Kostya barked out instructions in Russian from ringside throughout the fight while videoing it at the same time.
"I tried to see the mistakes and tried to analyse them quickly and give the instruction at the same time," Kostya said..
"I know probably the majority of my words were just for myself because Tim didn't hear me, but at the same time I needed to get rid of my excitement."
However, Tim said he did hear his dad's advice.
"It was like I was in a tunnel, there was three voices in my head: myself, my dad and my trainer and that's all it was. I didn't hear the crowd," Tim said.
