Warburton had originally been left out of Great Britain’s athletics squad after failing to achieve the second ‘A’ qualifying time he needed at the European Championships in Helsinki.
But the 30-year-old was added to the squad after a successful appeal and is now looking forward to his first Olympic debut.
“I wasn’t in the team on the Tuesday when it was selected, had to appeal, then glad I got in the team on the Friday,” Warburton said.
“It’s going to be mindblowing. I’ve got nothing to compare it to because I’ve never been to an Olympics before.
“I’m there to run at the end of the day. I’m there to do a job and I’m sure I’ll be able to do it there.”
The Welshman, who was fourth in the 800m at the 2010 Commonwealth Games, is one of three British men in 800m along with Andrew Osagie and Michael Rimmer.
Warburton admits reaching the final of an event which includes World record-holder David Rudisha, external of Kenya will be an achievement in itself.
“The 800m has moved on a lot in the last five years. David Rudisha’s pushed boundaries and I think it’s brought the whole field up
“But I’m going to take every race as it comes. Hopefully I’ll get through to the semi-final and then we’ll take it from there.
“If I can get into the final anything can happen. We’ve seen in the past 800m, 1500m runners pick up medals.”
