The Eredivisie club have paid 3.3million euros to clinch the central midfielder, who is nicknamed ´Femi´, on a five-year contract.
Groningen technical director Henk Veldmate said: "We have been following him for a long time. We tried to sign him in January but the deal did not go through."
Copyright (c) PA Sport 2008, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: http://gms.to/writeforgms