He also believes that, provided there is no reaction, he will be available to face Guus Hiddink's Russia in the second of the head-to-head qualifiers four days later.
Benitez warned Gerrard not to risk aggravating the injury before the midfielder joined up with the England squad but, barring a problem in today's final training session, the Liverpool playmaker will line up alongside Owen Hargreaves in the centre of midfield.
Hargreaves is making good progress from a thigh strain, and McClaren expects the Manchester United man also to declare himself fit after today's training session at London Colney.
McClaren said: "As a precaution, Owen was sent for a scan. Thankfully, it revealed only a small problem and we are hoping it will clear. The thigh problem is not related to the tendinitis he had in his knee."