Garner has told many times of his dream to fight at the stadium of his hometown football club – Southampton.
But the show in Bournemouth was deemed a massive success with his performance on the night and the backing of a few thousand fans.
The BIC was packed and noisy on Saturday with supporters singing Garner’s name hours before he even made his ring walk.
“That (venue) is his home for now,” Warren told.
“It was brilliant working with them down there and it’s a no-brainer to go down there again, it’s just a shame it isn’t bigger.
“Every time a fighter fights at that level they’re learning, have a couple more and then he’ll be ready to go.
“He’s a young man and he’s very capable, I genuinely believe he will be a world champion.”
As well as holding the European super-featherweight title Garner has the WBC International belt and is ranked 15th within their organisation.
The current WBC world super-featherweight champion is American O’Shaquie Foster who won the belt in November of 2024.
Garner’s pro career has been far from straightforward with injuries halting progress and also issues away from the ring that set him back.
“I never thought I’d give up on him through it all,” Warren said.
“From all those years ago when he signed with us I thought he was a precocious talent and he had the potential to be a great fighter.
“He was losing his dedication but he turned his life around, he has some direction in his life now with his family and it is nice to see that happen now and see that your faith in them was justified.”