by Alex Hoad at the Olympic Stadium

Jack Green predicts he will win an Olympic Gold medal in Rio in four years time, but was left without one in London after GB’s fourth-place finish in the 4x400m relay on Friday night.

Green again ran a barnstorming leg, running second and dragging GB up from seventh to fifth with a superb split time of 44.6secs, however third-leg runner Dai Greene slipped back to seventh before anchor Martyn Rooney hammered home, finishing fourth and just 0.13 outside of a bronze medal position.

Green, 20, took the blame for missing the medals, however he ran the second-quickest leg of the team, despite being a hurdles specialist.

Having impressed on the third leg in the heats on Thursday, Green was pushed back to the second leg with world 400m hurdles champion Greene coming into the third leg, though the Welshman's split was just 45.5.

Green said he felt ‘like I’ve missed out on a bronze by 0.1secs’ and added: "It was a shame I ran the second leg, to be honest.

"The reason was because I ran so quick yesterday, it meant I could get us in the race early on, which you kind of have to do.

"The second leg is for someone who goes out hard, but that’s not how I run. The problem is there was too much traffic for me, I had to run round people.

"Running round people doesn’t make you run quick."

Green, a former Saltwood Primary and Brockhill Park School, Hythe, pupil added: "I can understand why I was put there and I kind of did the right job, because we got back into it, but it was just a shame I couldn’t get that extra 0.1 or 0.2 which would have won us the bronze medal.

"I'm an individual athlete and I had my own job to do and my job was to start better. I got the Cuban and the Trinidad guy yesterday but they were just too far ahead of me this time.

"I had every runner under the sun infront of me... I had to step back to my rugby days on the back straight and second bend. I can’t control other people."

Asked if he’d consider a switch to the flat 400m, Green said: "If I get that speed onto the hurdles I’d be the best in the world. I have to learn."

He added: "I hope I don’t get taken out of the relay now, I feel like I’ve earned my place."

Reflecting on his first Olympic experience, Green said: "I have the utmost respect for Olympians in every sport.

"It’s the hardest thing to do to go out there and perform well. There’s a magic in the air which makes people run quicker. It’s an amazing experience to be a part of."

He predicted: "Now I’m an Olympian, but an Olympian without a medal.

"In four years time I will have a gold medal hanging around my neck and hopefully the relay team can push the Americans and the Bahamians too."