Yorkshire's Chris Silverwood is standing by for a recall if it is decided that comments by match referee Colonel Naushad Ali have undermined Kirtley's confidence .

"Someone was talking to me about his past history and based on that I have a little concern and I've requested video footage," confirmed Colonel Naushad Ali.

Captain Nasser Hussain is determined to clinch the series before experimenting with the side.

But he may be forced to shuffle his pack if Kirtley shows signs of strain in Friday's net session at the Zimbabwe Academy.

The allegations come less than a year after an England and Wales Cricket Board investigation cleared his action during an A tour to New Zealand.

Though Colonel Ali insists he has not yet written to the ICC, he promised he would look at Kirtley's bowling action again if he plays on Saturday.