Raiders backrower Elliott Whitehead will be free for Canberra's preliminary final showdown with Melbourne after escaping a charge for a high shot on Penrith's Isaah Yeo which left him dazed and concussed.

The English workhorse will be counting his lucky stars after a first-half tackle on Yeo left the Panthers' man needing help from the field before he miraculously returned having passed the mandatory head injury assessment.

Yeo trotted back onto the field after half-time when many thought he would be little chance of returning.

But the match review committee didn't deem Whitehead's tackle worthy of a charge. As a result, the 27-year-old, and compatriot Josh Hodgson, will lead the Raiders' charge at AAMI Park on Saturday night against the Storm, who they toppled just last month in the nation's capital.