The 26 year old received two yellow cards, resulting in a red card, during the second half of Samoa's 34-0 defeat in Kobe.
The first came 16 minutes after half-time, when he was penalised for illegal entry in the side of a maul, which resulted in a penalty try.
Fidow was then given his marching orders six minutes from full-time after receiving a second yellow card for a dangerous tackle, where he slid knee-first into the outstretched Sean Maitland as he dived for the try-line.
