SI.com’s Richard Deitsch reporting on the impending breakup of Mike and Mike:

ESPN Radio is now experiencing some off-camera issues of its own. Multiple ESPN staffers, including current and former employees who have had roles with the show, told SI.com last week that the once-warm relationship between partners Mike Greenberg and Mike Golic has turned icy over the last year, prompting a number of ESPNers to predict that the show will conclude long before this December’s contractual end. The sources said Greenberg and Golic are not talking to each other off the set—and hardly at all before the show or during commercial breaks.

…

“It’s really a poisonous atmosphere right now,” said one longtime ESPNer who has worked on the show. “Most of us don’t see the show lasting through its contractual end [which is believed to be the end of December]. But I give both these guys immense credit because when the light comes on, you would not know what’s going on. They are pros on air.”

Deitsch went on to explain that the animus likely stems from Greenberg’s decision to leave the show to start his own morning TV show from New York without filling Golic in on his and the network’s plans, of which Golic reportedly found out by reading SI.com. That sounds familiar.