PHOTO: The Undertaker Heading to New York City?

(Photo by Don Arnold/WireImage)

The photo below has been making the rounds on the internet today, and features what appears to be The Undertaker on a plane bound for New York City, the site of SummerSlam this Sunday night.

Undertaker last appeared at WrestleMania 33, at which he lost to Roman Reigns, and teased retirement after the bout: