Peter Brezovan has been given the opportunity to try and earn a contract with Crewe.
The Slovakian goalkeeper has been without a club since leaving Swindon over the summer.
He was brought to the County Ground by Dennis Wise in 2007 and made more than 50 appearances for the Robins over a two-year period.
He has now been taken on trial by Crewe and will feature for the reserves against Aston Villa on Tuesday night.
New signing Carl Martin has also been included in the squad for the clash with Villa at Bodymoor Heath.