Ian Blackwell admitted he thought his England chance had gone before he was called into the one-day side to replace the injured Ashley Giles. Blackwell, a spinner and big-hitting batsman, played the last of his 23 one-day internationals in 2004.
"I know I have to prove to England that I want to be part of the set-up and that will be my aim in Pakistan.
"It's the ambition of every cricketer to play for his country and I am no different," he told Somerset's website.
Blackwell averaged just 16.16 with the bat in his first spell in international cricket, despite a first-class mark of 39.19, and took 15 wickets.
 | It disappoints me that I have been labelled a one-day player |
But he played a key role in Somerset's Twenty20 Cup success this season and was named captain after Graeme Smith returned to South Africa.
"Fitness is still an issue as far as England are concerned, but I have been working on that since last year," Blackwell added.
"Captaining Somerset over the latter part of the season made me think about the game differently - you have to consider others as well as your own form.
"Overall I think it was probably my best season. My bowling came on in leaps and bounds, while I averaged 50 in first-class and Totesport cricket."
Blackwell, 27, said he still had ambitions of playing Test cricket.
"It disappoints me that I have been labelled a one-day player because I hit the ball hard and score quickly. My statistics are better in four-day cricket," he added.
"This is an opportunity I have to take. There will be time to acclimatise before a warm-up game and I'm looking forward to being part of the England dressing-room again."