Sadiq was a subject of interest from a number of clubs in Spain and Europe following his impressive displays for UD Almeria for the past two seasons.
Newsonline report that the Nigerian was close to joining Villarreal but the Yellow Submarine failed to match Almeria’s valuation of the player.
Real Sociedad finally won the race for the striker parting with €20m to secure his services.
Aperribay expressed his delight and hopes Sadiq will make a big impact at the club.
“We are very happy that you are here.
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“We wish you the best. We hope that you will connect very well with the fans and that you will be very happy in San Sebastián”, he told a press conference.
Sadiq will wear jersey number 25 at the club.