Rashid is still not at his 100 per cent with rumours from the England camp suggesting that he he is still operating at only 85 per cent.
Paceman Tim Southee will lead the team in Williamson's absence, with the batsman hoping to return for a two-Test series against the tourists in late November.
Although there are question marks over his Test future, he remains an important cog in England’s wheel as far as their white-ball plans are concerned.
England have not advertised the position, with Giles instead gathering interest before a final shortlist is drawn up.
Having played a minimal role with the ball, Ben Stokes' bat created ripples equivalent to Thor's Mjolnir and Captain America's shield.
England beat New Zealand in a Super-Over thriller to be crowned the 2019 World Cup champions.
England and New Zealand have assured us a brand new World Cup winner, and the cricketing world cannot thank them enough.
With India and Australia posing a serious threat, Williamson stressed on the need to press the rest button before it gets too late.
England booked themselves a place in the semi-final of the World Cup 2019 with a resounding 119-run win over New Zealand.
Martin Snedden reached a low against England at The Oval in 1983, being the first bowler to concede a hundred runs in an ODI.