Bruce told the Evening Post: "Our squad has a good depth to it. I'm delighted with what I've done, and I would have thought that is the end of our shopping.
"But we'll have to see how Scharner is. We haven't got a lot of cover at the back with Erik Edman being out at the moment. It's a concern."
Bruce has already landed Lee Cattermole, Daniel de Ridder, Olivier Kapo, Amr Zaki and Maynor Figueroa to his squad during the close season.




