"Tevez is absolutely key to City's hopes, both in this match and for the rest of the season, " Rosler, who scored twice against United in the Manchester derby during a four-year spell at the club from 1994-98, told BBC Sport.

BBC: Why Carlos Tevez is so important to Manchester City

At his Senate hearing last month, General Hayden told Michigan Democrat Carl Levin not once but twice that he was not "comfortable" with intelligence-related work that had been done by an office reporting to former Undersecretary of Defense Doug Feith.

CENTERFORSECURITYPOLICY: Correcting the Hayden record