Rebuffed by Bears, Mike Singletary embraces next challenge: reality TV

Mike Singletary will appear on CBS’ “Beyond the Edge” starting Wednesday.One of the most fearless football players of his era laid atop a bamboo bed in a Panamanian jungle last fall. It was 2 a.m. and Mike Singletary, the Bears’ Pro Football Hall of Fame linebacker from 1981-92, had to use the bathroom. Though he spent the next few minutes trying to convince himself he didn’t, soon it was time to act.

“It gets to the point where you can’t wait,” he said.

It was pitch black outside — the nearby fire had died — and Singletary didn’t want to get lost in the remote jungle on the way to the latrine. So he woke up the person with the nearest bed — former Ravens linebacker Ray Lewis — to go along…