The reason? The inaugural Fitzrovia derby.
Saatchis, no doubt eager to settle a few scores having seen more and more of its Toyota business end up down the road with its rival, fought hard to secure a 1-0 win, courtesy of James Southward's solitary strike.
Play was rough at times, with Saatchis' Jasper Nelissen elbowed in the face and Jim Church retiring with a groin stain. And CHI almost grabbed a share of the spoils, but were apparently denied by the woodwork several times and some top-drawer defending.
According to the losing skipper, Steve Mott, Saatchis arrived ready for battle armed with a few ringers and even a film crew to record its eventual victory.
CHI shrugged off defeat, claiming they thought it was just a bit of fun and hadn't even had a chance to practice together beforehand.