'Mad Dog' sends heartfelt tweet to Mike Francesa

Mike Francesa isn't on Twitter, but hopefully he'll see all the #ThankYouMikeFrancesa messages from around the Interwebs during his final day on New York's WFAN.

That includes this gem from his former partner for decades, Chris "Mad Dog" Russo - the pair were the iconic Mike and the Mad Dog, in case you're unaware:

Lovely. Here are some other messages from fans:

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