Twenty20 World Cup in Australia beginning next month. Roy has been an integral part of England's white-ball squad and his explosive batting at the top of the order embodied the team's aggressive approach as they won their maiden 50-overs World Cup title in 2019.
The 32-year-old has struggled for runs this summer and hit 76 runs in total in his last six Twenty20 Internationals which made his position untenable for the World Cup and the preceding seven-match Twenty20 series in Pakistan.
Woakes and Wood, both of whom last played for England during the test tour of the West Indies in March, have recovered from their respective injuries to be in both squads.
The World Cup squad includes Chris Jordan (finger) and Liam Livingstone (ankle) who will skip the Pakistan tour to continue their rehabilitation, the England and Wales Cricket Board said in a statement.