Tim Ambrose admits he was "shocked" to learn he would replace wicketkeeper Matt Prior for England's forthcoming tour of New Zealand.
The New South Wales-born wicketkeeper-batsman, 25, has come in for his former Sussex team-mate following England's disappointing Test series in Sri Lanka.
Prior made a number of costly errors behind the stumps on that tour and has paid the price as a result.
Durham gloveman Phil Mustard is currently first choice for the one-day series, but if he fails to make a big impression Peter Moores looks set to go with Ambrose for the Test series that follows.
And Ambrose who left Sussex for Edgbaston at the start of the 2006 season cannot wait to take his oppportunity.
"David Graveney rang me this morning, I was a little shocked and a little numb and then I just let it soak in," he told Sky Sports 1.
"I'm still friends with Matt, it was just one of those situatons where we were both in the team and we both wanted to play. We realised that one of us had to make a move and that was my decision to do that.
"Since coming to England, I've played all my pro career here and am very excited and looking forward to the prospect of representing England.
"There's always competition for all places, which is healthy, it's always good to have that push from behind to make sure you're doing everything right and giving the best you can.
"It's my job now to try and step up and fill that spot as best as I can."
England depart for New Zealand on January 26, where they will play five one-day internationals and three Tests.