The Rocket, 46, matched Steven Hendry's record of seven Crucible titles with an impressive 18-13 victory over world no.4 Trump on Monday evening. Despite Trump claiming the first frame of the final, O'Sullivan raced into a 5-1 lead in the opening session and a record-equalling seventh triumph seemed inevitable as the Wordsley-born wizard ended Sunday 12-5 in front.
Trump, though, displayed a spirited comeback to narrow the score to 14-11 on Monday afternoon but admitted he gave himself too much to do in his post-match interview.
Whilst also reflecting on an impressive two weeks at the Crucible, Mr Haircut revealed he was in no doubt that the best man won.
When asked how much hope he had when returning to the table for Monday evening's final session Trump joked: "None! Firstly, I just want to say a massive congratulations to Ronnie. It has been a pleasure to share the table with him.
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"He has always been so good to me, throughout my career - letting me practice with him when I was young, trying to learn things off him. So, an amazing achievement and he will go down as the best player of all time."
Trump added: "He keeps getting better and better. I think his determination, dedication, you can see it out there. He barely misses a ball over the 31 frames.
"I think he was the best player throughout the whole tournament by quite far and I was just happy to make a match out of it this afternoon."