Rechmial and Chad Miller are brothers first and sprinters second, but both could be destined for the top of athletics, says father and coach Paul.

After winning bronze at the IAAF World Youth Championships, Rechmial, 17, will now focus his attention on the Commonwealth Youth Games next month.

But his sudden burst on to the international scene is just the start of what could be a decade of success for the Miller family.

Paul, himself a former sprinter, trains a crop of young athletes from the Hercules Wimbledon club – including U13 British record holder Jaleel Roper.

Getting the balance right between being a caring father and an expectant coach is just one of the challenges Paul faces.

However, he is embracing being a part of the exciting journeys his sons – both 60m and 100m sprinters - are taking.

“Both boys are really progressing well and both are going from strength to strength,” he said.

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Super-fast #2: Chad Miller

“It’s great for Rechmial to get an international medal, but if I’m honest he’s slightly behind schedule.

“He had a little injury coming out of the indoor season so we are only just reaching where we want to be.

“We’ve worked through the year and his race is almost there - we’re looking for him to peak at the Commonwealths,” he added.

“Chad has exceeded all our expectations and is developing a lot faster than we expected.

“We’re targeting the UK Championships and the English schools games for him and he is only going to get better,” he said.

Paul has no qualms about discussing what level his sons can reach, but knows it is not an easy road to the highest echelons of athletics.

He said: “Both boys are mentally very strong and are focussed on reaching their potential.

“Rechmial is in great mental and physical shape and we just need to stay injury free.

“Chad’s in a similar position and has always wanted to be an athlete, so is as determined as anyone to keep improving.

“Of course they have the potential, but they need to just remain focussed, stay competitive and it’s in their hands.”