In the absence of Yasir, who has amassed 165 wickets in just 28 tests, Pakistan selectors are expected to turn to fellow leg-spinner Shadab Khan and left-arm spinner Kashif Bhatti for the tour.
Ireland will play their inaugural test against Pakistan from May 11-15 before the South Asian team play two tests against England at Lord's (May 24-28) and Headingley (June 1-5).
Pakistan will also play two Twenty20 Internationals against Scotland on June 12 and 13, both at Edinburgh's Grange Cricket Club Ground.
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(Reporting by Amlan Chakraborty in New Delhi; Editing by John O'Brien)
