Winger Cristian Montano is set to join Tyrone Barnett on the sidelines for Vale’s opening game against Crawley Town.
The summer signing has been in good form during the pre-season friendlies so his absence will be a blow for the Valiants.
The participation of goalkeeper Rob Lainton could also be in doubt with either Ryan Boot or Sam Hornby set to deputise if he fails to make it.
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