Blackpool have made Welsh international David Vaughan their tenth signing of the summer.
The 25-year-old midfielder arrived at Bloomfield Road in a deal worth around £200,000.
Vaughan made more than 200 appearances for Crewe scoring 20 goals, before following Chris Coleman to Spanish side Real Sociedad last summer.
He has penned a two-year-deal at Bloomfield Road with the option of a further year.
Meanwhile, media reports in Derby suggest that Blackpool have signed Mo Camara from Derby on a months loan.
Simon Grayson has re-built his squad in an attempt to establish the Seasiders' as a Championship club.

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