When Ensign called upon the 'Ickx' factor

In 1977, Clay Regazzoni attempted an unlikely feat: to qualify for the Monaco Grand Prix and the Indy 500 on the same weekend! The ploy failed unfortunately and as Indy took precedence, Ensign called on a visiting Jacky Ickx to take over the Swiss' ride the day before qualifying. Ickx ended his interim drive with a tenth-place finish in the Principality.