BIRMINGHAM co-promoter Graham Drury has slammed what he describes as mischief making rumours regarding Chris Harris and Cardiff.Harris will appear at next Saturdays Fogo British FIM Speedway Grand Prix at the Millennium as planned despite speculation that he may stand down.The meeting will mark the return of Bomber to the Grand Prix stage and he will be back at the venue where he tasted victory in 2007.Said Drury: I have no idea where these rumours come from, but Ive had emails and calls from people asking if its true that Bomber has pulled out of Cardiff.I want to stamp on these rumours straight away. He will be there, flying the flag for British Speedway and representing Birmingham Speedway.The rumours are completely without foundation and I can only put it down to mischief making. Hopefully this will put those rumours to bed and I can assure everyone that Chris Harris will go to Cardiff to give it his all.