JJ Watt gives Titans QB a taste of his own selfie medicine (VIDEO)

Zach Mettenberger loves a good selfie.

The Tennessee Titans quarterback was all fired up earlier this week when he was named the starter for Sunday's game against the Houston Texans. In fact, he took to social media and posted some self photos of himself and his retro-chic look.

Texans star defensive end J.J. Watt must have seen those selfies, because he had a special celebration in mind when he sacked Mettenberger: