Inzamam is now 37 but wants to continue his Test career

Younus will be on international duty for Pakistan at next month's ICC World Twenty20 tournament in South Africa.

And Inzamam is set to deputise in three Championship games, and up to three Pro40 fixtures, providing the Pakistan Cricket Board approves the deal.

"I have accepted a short-term contract because I have never experienced playing for a county," he said.

"I see my stint with Yorkshire as a good opportunity to get ready for a hectic international season for Pakistan."

Inzamam resigned as Pakistan skipper and quit one-day internationals following the World Cup in the Caribbean earlier this year.

But the 37-year-old is eager to continue a Test career which has so far seen him score 8,813 runs in 119 games at an average of 50.07, just 20 fewer than Javed Miandad's record for the national team.

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The selectors have, however, indicated that he must prove his fitness and form in order to be considered for a home series against South Africa which follows the ICC World Twenty20.

Yorkshire, meanwhile, believe Inzamam can help rejuvenate their title hopes following last week's innings defeat by Roses rivals Lancashire.

A club statement said they had "stated their determination to maintain their challenge for the LV Championship title in the strongest possible terms" with such a high-profile signing.

The statement added: "Inzamam has said that he wants to continue playing Test cricket, but he was not given a contract by the Pakistan Cricket Board last month.

"His involvement with Yorkshire means that his first-class career is still very much alive."

Inzamam has also been approached about the possibility of playing in a new Twenty20 league in India later this year.

"I'm discussing the terms and conditions with them and if they're right I will certainly play," he said last month.