McCann Worldgroup, the American ad agency that shockingly won the ad account of the 2012 London Olympics in 2009, notoriously defeating Britain's WPP Group, led by Sir Martin Sorell, bids a fond (and fun) farewell to the Games with this full-page ad in today's Times and Daily Telegraph. McCann handled advertising, promotion, PR and digital communications in what is believed to have been the biggest marketing project in British history. Now, as the headline notes, they've lost a client. The body copy reads: "After four years dedicated to delivering a successful London 2012, our work here is done. It's an exciting moment, because we now have an Olympic-sized gap in our roster. We're hoping to fill it with brands that want to perform faster, higher, stronger. And with clients that don't wear quite so much Lycra."