Welshman Andrew Selby issued a damning verdict on Haroon Khan's belief that he is the best flyweight fighter in Britain.
Selby overcame England's Tommy Stubbs on countback in his Commonwealth Games opener then rounded on rival Khan, who has made vocal claims that he should have been the one chosen at the weight for the Great Britain podium squad.
Selby said: "Haroon's had many chances with the GB squad but he's just ended up getting hurt. I'm not the greatest at sparring but I still did him. He rushes in without thinking and I'll just pick him off."
Selby took the verdict over GB team-mate Stubbs after a tight 1-1 draw while Haroon, representing Pakistan, followed him into the ring and into the quarter-finals with an 8-5 win over Gilbert Bactora of Mauritius.
Khan claimed not to recall the alleged sparring session in question and refused to get drawn into a war of words, insisting he bore no ill will towards his Great Britain rivals but would aim to make his point in the ring.
Khan said: "This is the time for me to prove everyone wrong and I'm sure I'll do that. It's going to be a big thing for me to beat a Brit because he's where I wanted to be and that's in the GB podium squad.
"I'm sure I've only sparred with him once and if he beat me up I don't remember it. I've spoken to a few of the British fighters out here and we respect each other. I've got no grudge with the English boxers, just the selectors."
Selby set up the tasty showdown with a patient display against Stubbs, who scored the first point and tried to defend it behind a tight guard. When the bout went to countback there was little doubt over who would gain the verdict.
Stubbs moved up to the 52kg category following the withdrawal of favourite Khalid Yafai and Selby revealed he had put himself under extra pressure with the belief that his funding could be in jeopardy.
Selby added: "Tommy has come up to my weight so I was telling myself all day that if I lost I could be kicked off the podium programme. It put a lot of pressure on me but in the end I went in and did the job."
Meanwhile disappointed Stubbs added fuel to the potentially incendiary showdown between Selby and Khan.
"Andrew will get the gold now," said Stubbs. "He'll easily beat Haroon - both of us would easily beat Haroon."
Bournemouth bantamweight Iain Weaver set up a second Saturday grudge match against Indian poster boy Akhil Kumar after easing coming through his Games opener with a second-round stoppage of Swaziland's Vusie Simelane.
The Bournemouth star beat Kumar to win the Commonwealth Feds in Delhi earlier this year and, after both fighters traded jibes in the local media, the evening rematch is promising to cause a stir.
Weaver said Kumar would have to get fitter in order to stand a chance against him and after stopping Simelane he shrugged: "He looks pretty much still the same Akhil Kumar I boxed last time."
Weaver, who also won the Commonwealth Youth Games in Pune in 2008, added: "I've beaten Kumar once and there's no reason I can't do it again. Hopefully I'm going to beat my third Indian on Saturday night."
Bradley Saunders skated through to the 64kg quarter-finals with a near-perfect 10-0 win over tough New Zealander Anthony Taylor.
He said: "Everything is coming together and I couldn't have boxed a lot better in there."
Olympic bronze medallist and European champion Paddy Barnes was made to work hard for a 4-2 win over Scotland's Iain Butcher and pronounced himself far from happy with his opening performance.
Barnes said: "It was a tough fight and he made it hard for me but it was all about getting the fight out of my system. I need to improve if I'm going to take gold but that's what I'm aiming for."
Pontypridd light-heavyweight Jermaine Asare beat Tarieta Ruata of Kiribati 6-3 but Michael Conlon found himself on the wrong end of a countback verdict against Australian Jason Moloney after a storming 10-10 draw.
