(AOF) – Nike and Foot Locker are expected to be in negative territory at the opening of Wall Street after the warning from JD Sports. The British sportswear chain plunged on the London Stock Exchange after lowering its annual profit forecast, citing rising costs and slowing demand. The company now expects profit before tax and adjusted items to be between £915 million and £935 million for the year ending February 3. It had previously forecast a profit in line with market expectations of 1.04 billion pounds.