Ben Foster believes his move to Birmingham can kickstart his international career.
The 27-year-old signed a three-year deal with Blues on Wednesday after leaving Manchester United in search of more first-team opportunities.
Foster told Blues TV: "I look forward to playing first-team football and that's hopefully what I'll be getting here. As long as things go well for me, and hopefully they will, I'll be knocking on the England door again."
He added: "People say I have left Manchester United but I definitely don't see it as a step back.
"I am really excited and think it is a big step forward for me to be playing first-team football in the Premier League.
"I love playing football and training is good but for me something needs to be there at the end of the week."
Foster hopes to fill the void left by Joe Hart, who has returned to Manchester City after an impressive season on loan at St Andrew's.
Foster, who himself spent two seasons on loan at Watford after first joining United, said: "Joe did absolutely fantastic last season. It was great for him to get out on loan and play in the first team.
"It is exactly what I need. I have had three years at United in and out of the team, not playing too regularly. It is a fantastic opportunity for me now to play regular football.
"I'm 27 - in terms of goalkeeping, fairly young. I'd like to think I've got a few years ahead of me yet. It is an exciting time of my career."
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