Sunil Narine has pulled out of West Indies' World Cup squad as he continues to build confidence on his remodelled action.
Narine voluntarily took a leave of absence from international cricket in order to take a fresh approach to his action after being reported by umpires during the Champions League T20 in October last year.
While he has returned to domestic 50-over action with Trinidad and Tobago this month, he does not feel ready to participate in the World Cup, which gets under way in less than three weeks' time in Australia and New Zealand.
The West Indies Cricket Board (WICB) will announce a replacement for the 26-year-old in due course.
"Playing for Red Force and winning the NAGICO Super50 has been a big boost, but going in to the World Cup is a little too much too soon and, after consulting the WICB, for both West Indies and my sake we have decided to delay my return to international cricket until I am 100 per cent confident in all that I do," Narine said in a statement on the WICB website.
"Whilst I am very happy with the progress made to date with my action, and I express my thanks to the coaches working with me in Trinidad and Dr Daryl Foster in Perth, Australia, I am withdrawing from the World Cup."
Narine added: "I would like to thank the WICB for their support and wish the West Indies team the very best for the World Cup campaign."
Today's news means neither the International Cricket Council's number one ranked one-day bowler, Pakistan's Saeed Ajmal, nor Narine, the number two, will feature at the sport's premier event.
Ajmal was banned from bowling in international cricket last year after it was found he possessed an illegal action in part of the ICC's crackdown on spin bowling.
Fellow mystery spinner Narine took precautions to avoid that scenario, but has now opted to withdraw from the World Cup when the Windies will be in the opposite group to England.