Titans quarterback Charlie Whitehurst said Monday he wasn't expecting a national reaction when he sent out a false Instagram post about losing an arm-wrestling bet with punter Brett Kern last week.

"That was kind of my first real experience with that whole … Twitter stuff," said Whitehurst, whose account says he joined Twitter in May of 2010. "Some of the guys later were telling me, `Hey, they're killing you on there.' I wasn't really paying much attention to it. But that's the first time I realized how modern media can happen."

Whitehurst said on the Instagram post that he and Kern had arm-wrestled for the right to wear the No. 6 jersey, with the punter coming out on top. But he acknowledged Monday that the event never happened.

"It all happened so fast. I don't remember what motivated me to do it, but I think it was kind of like, `Hey, this looks pretty good,' " Whitehurst said. "It was a 30-second thought. I didn't think anybody took me that (darn) serious."

Whitehurst did say with a smile that he could probably beat Kern in an arm-wrestling contest, though he didn't think any such event was likely to occur.