Chetty, South Africa's most experienced wicket-keeper has played 68 T20Is, failed to make a full recovery from an injury she suffered earlier this year. The 19-year-old Tunncliffe made her international debut in September on the recent tour of the West Indies.
The ICC event technical committee comprising Geoff Allardice, Chris Tetley, Mel Jones, Ebony Rainford-Brent, Jennifer Nero and Roland Holder permitted the replacement.
“Trisha Chetty has worked extremely hard and had recovered well. We know she will be disappointed to miss out on the tournament and wish her a speedy recovery,” said South Africa coach, Hilton Moreeng.
“We have coming in Faye Tunnicliffe, who was here in the West Indies with us on the last tour so she’s familiar with the conditions. Settling into the squad will be easy. We have worked hard toward this tournament. Everybody is focused. It’s a tough group we’re in, but everybody’s ready.”
This is the third change in the South Africa squad. Earlier, Yolani Fourie replaced Raisibe Ntozakhe for a banned action and Moseline Daniels replaced the injured Saarah Smith. South Africa have already lost both their warm-up matches against Pakistan and Australia by huge margins.
Tunnicliffe will join the squad in St Lucia where South Africa will play their Group A matches against Windies, England, Bangladesh and Sri Lanka at the Daren Sammy Cricket Ground. The Proteas play their opening match against Sri Lanka tonight.