The British rider was originally supposed to make his first of four planned wildcard outings for the Pedercini Kawasaki outfit at the Italian track, although he ended up stepping in for the ousted Loris Cresson last month at Assen.
However, Pedercini has now announced Haslam won't be racing at Misano as planned owing to a conflict with the Japanese manufacturer's preparations for Suzuka in early August.
