David Meyler hopes he will be a regular in the Republic of Ireland squad after recovering from two serious knee injuries.
Meyler was tipped for big things when he moved to Sunderland from Cork City in 2008, but two cruciate knee ligament injuries restricted him to 16 appearances in the past two seasons.
The midfielder has featured in all three of the Black Cats' fixtures this campaign, and he is now pushing to make his international bow in either Friday's World Cup qualifier in Kazakhstan or Tuesday's friendly with Oman.
"With suffering two serious injuries in the last two years obviously it's vital I make an impression to ensure that he keeps me in the squad," said Meyler.
"I obviously want to stay here. I don't want to be called up and never get the call again so I have to take every training session like it's my last and if I get the opportunity to play in either of the two games I have to make an impression."
Meyler revealed he put in 10-hour shifts at Sunderland's training ground to ensure he would make a full recovery, and he is pleased that hard work has paid off.
"On Saturday I would start training at 7am and then jump in the car and drive to Manchester or to London to watch Sunderland play," he revealed.
"I'd sit with the away fans. Then you do start to appreciate it a bit more and that's why I was delighted that I was called up again."