Tim Tebow Gets a Taste of Sin City

What happens in Vegas ... was pretty tame for Tim Tebow yesterday.

The Denver Broncos quarterback was spotted strolling through the Bellagio hotel last night along with his brother and a friend ... after catching a performance of the Cirque du Soleil show, "O."

We spoke to Tebow's rep ... who told us Tim was in town for a Nike photo shoot ... and was only in Vegas for the day.

We're told Tebow didn't gamble, didn't party, and definitely didn't attend the big AVN porn convention that happens to be going on down the street.

We asked how Tebow's ribs and lungs were feeling after the beating he took at the hands of the New England Patriots last weekend -- and his rep told us, "He's doing good ... taking his time to relax and rehab. He's been rehabbing non-stop."

We asked how Tebow would be spending his first free weekend in months ... and the rep told us, "He's looking forward to going to church."