22-year-old Martin who has been on trial at the club for a few weeks has featured in the 4-0 win over Congleton Town and came on as a 2nd half sub in the 2-1 win over Premiership side Wolverhampton Wanderers.
The former Leeds United keeper could become the Railwaymens first summer signing after he had turned down a contract extension at Ayr United in order to play full time football.
Martin will feature in a Crewe XI that will play at Newcastle Town tonight at the Lyme Valley Stadium.