"Michael has always been the number one target this summer, so obviously I'm delighted he's put pen to paper. Although other clubs were interested in trying to sign Michael he wanted to come and play for us and that is the kind of passion and commitment to Norwich City which I'm looking for in my players."
It also emerged he had been on trial in March, so Gunn and co clearly have had plans in place for some time.
Theoklitos gets David Marshall's Number One jersey.