Taylor has faced a barrage of criticism since that controversial night at the Hydro, with many believing he was the beneficiary of one of the worst decisions ever seen in a British ring.
The Scot has had just one fight since, losing to the impressive Teofimo Lopez in New York in June last year.
It’s three years since the Tartan Tornado became undisputed light-welterweight champion with a memorable win over Jose Ramirez in Las Vegas.
His performances in his following two contests, and prolonged inactivity, have led many to question whether the 33-year-old’s best days are behind him.
“That is the question and I suppose we’ll know the answer after the fight with Jack,” said Frampton, who shared a gym with Taylor when both men were under the tutelage of Shane McGuigan.
“Genuinely, Josh Taylor is one of the best fighters I’ve ever seen. I used to train and then quickly get away from the gym, but I always made a point to stay and watch Josh’s sessions if he was sparring because I always loved what I was watching. But I did that with Jack Catterall as well.
“There are questions around Josh. He’s been in hard fights, he’s been around a long time and age catches up with everybody. I’m not saying that’s the case, all I’m saying is we’ll know after the fight.
“I love Josh Taylor, love everything about him.
“He wears his heart on his sleeve and sometimes I’m looking when he’s saying the things he says online and thinking ‘you don’t need to Josh, just stay out of that’. But that’s just the way he is, he doesn’t care what other people think and there’s something nice about that as well.
“He says what he wants and I can completely respect that.”