Ntwari has made just one appearance for Amakhosi this season, featuring in the Carling Knockout first round against Stellenbosch, a match which was decided by a penalty shootout after he kept a clean sheet in regulation time.
The Rwanda goalkeeper has largely served as Brandon Petersen’s deputy for the better part of the campaign so far.
With Ntwari now unavailable, that opens the door for Bruce Bvuma to step in as Petersen’s understudy.
Bvuma will now look to make the most of this opportunity to push to reclaim his jersey as Chiefs' number one, although it would be a difficult task to wrestle that spot from the club captain.