Former captain Holder last played for the West Indies in July— Test and T20I against India at home and in ODIs against Scotland during the ICC World Cup qualifiers in Harare.
Pooran, also an ex-Windies captain in white ball formats, last played a T20I against India in August while his last ODI appearance was against Sri Lanka.
Mayers' last T20I and ODI were against India in August while his previous Test appearance came against South Africa at Johannesburg earlier this March.
List of contracted WI players
Men: Alick Athanaze, Kraigg Brathwaite, Keacy Carty, Tagenarine Chanderpaul, Joshua Da Silva, Shai Hope, Akeal Hosein, Alzarri Joseph, Brandon King, Gudakesh Motie, Rovman Powell, Kemar Roach, Jayden Seales, Romario Shepherd.
Women: Aaliyah Alleyne, Shemaine Campbelle, Shamilia Connell, Afy Fletcher, Cherry-Ann Fraser, Shabika Gajnabi, Jannillea Glasgow, Sheneta Grimmond, Chinelle Henry, Zaida James, Mandy Mangru, Hayley Matthews, Karishma Ramharack, Stafanie Taylor, Rashada Williams.