The flyweight’s year-long absence paid dividends as he picked up a unanimous-decision victory at Portsmouth Guildhall to register a maiden success in the pro ranks.
After suffering a defeat to Benoit Poittevin last November, Southern – who trains at Fratton’s Gym 01 – took time out of the cage to hone his arsenal.
And the Southsea-based talent’s countless hours of training bore fruit and he put in a ‘perfect’ performance.
Southern said: ‘I know I’ve been capable of a performance like that for a long time so it was nice to actually go and deliver.
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‘It feels like the beginning of my pro career. On my debut, a nightmare shot changed the whole fight so I took a year off.
‘Everything in this fight is what I do in the gym – it felt like a training session. Everything went my way and it was perfect.
‘There wasn’t a point when I felt out of control and that was the best thing about it. On the day of a fight, usually I’ll be a bit nervous but from the warm-up I knew everything was going well.
‘I felt in my element the whole time. There are stuff that didn’t go how I wanted but everywhere the right went I was in control.
‘My break 100 per cent paid off. Aaron didn’t make anything easy but in each position, I felt a step ahead. Even when he was getting ahead, I just slowed the fight down.
‘It’s a benchmark where I am and it was also really good going the three rounds.’
Southern is targeting a quick return to the cage before the end of the year.
The University of Portsmouth graduate added: ‘I want to fight as soon as possible. My name is out to a couple of shows so hopefully I’ll be out before the end of the year.
‘If it’s the worse case then it’ll be early next year. At the moment, I just want to fight as often as possible.
‘I’ve picked no injuries, I want to be active as possible then see where we get to by the end of next year.’