JAMES Guy believes there is more to come from Great Britain’s 4x100m medley men as he helped them secure a new national record in Rio.

The Olympics has already been a competition to remember for Guy – not only does it mark his Games debut but he has a medal to show for his efforts after being part of the team that won 4x200m freestyle relay silver.

And there could be more relay glory for the 20-year-old before the end of the Games as he teamed up with Chris Walker-Hebborn, Adam Peaty and Duncan Scott for the men’s 4x100m medley relay heats on Friday.

The quartet won their heat in 3:30.47 minutes – a new British record and a time that saw them qualify fastest for Sunday’s final (3.04am), where Michael Phelps and the Americans will start favourites.

And while this marked Guy’s ninth race of the Games, he insists he has enough left in the tank for one more push.

“I’ve had a few races now so I was a little bit ropey,” said Guy, who finished an agonising fourth in the men’s 200m freestyle final.

“But I think the time was alright. It felt good, I saw we had some clean water.

“I felt relaxed although heats of the relay I do tend to be a bit ropey so there’s room for improvement.

“It’s pretty good. I’m excited for the final, it’s the last swimming race of the 2016 Olympic Games. It’s going to be interesting.

“Michael Phelps will be in there too, it’ll be the last chance to race him so it bring it on.”

Joining Guy in the team for Friday’s heat was Peaty, who broke his own world record twice en route to the 100m breaststroke title.

And he is adamant there is more to come from Guy too before his maiden Olympic Games is over.

“It’s the fastest relay by a British squad, so it’s looking good,” said Peaty.

"Everyone is feeling it now but we are going to lift it one last time to try and get ourselves back on the podium."

Warrington Guardian: