Saint Lucia: Pakistan captain Shahid Afridi won the toss and elected to field against West Indies in the second One-day International at Beausejour Cricket Ground on Monday.
Pakistan are unchanged, but West Indies have brought leg-spinner Anthony Martin in for his international debut to replace fast bowler Andre Russell.
Pakistan lead the five-match series 1-0, after winning the first ODI by eight wickets last Saturday at the same ground.
The third and fourth ODIs will be played on Thursday and next Monday at Kensington Oval in Barbados, with the final match of the series three days later at the Guyana National Stadium.
Pakistan have won their last six ODIs against West Indies spread over the last four years, with the hosts previous victory a 54-run triumph in the opening match of the 2007 World Cup staged in the Caribbean at Sabina Park in Jamaica.