Complex sentence: Berry Gordy offered him the role of Louis McKay in the 1972 film "Lady Sings the Blues", opposite Diana Ross as Billie Holiday, but Stubbs turned it down, once again not wishing to overshadow the other members of the Four Tops.
Split into simpler sentences: Berry Gordy offered him the role of Louis McKay in the 1972 film "Lady Sings the Blues", which would have starred him opposite Diana Ross as Billie Holiday. However, Stubbs turned the role down, once again not wishing to overshadow the other members of the Four Tops.