'You missed me!' Baseball player tweets photo with unsuspecting fan wearing his jersey

One baseball fan had one of the greatest days of his life may not even know it.

Roy Hallady, who has played as a pitcher for the Phillies and the Toronto Blue Jays, tweeted this photo of himself and a fan at an amusement park Sunday. The fan, who is wearing Hallady's jersey, doesn't seem to notice that he's in a picture with Halladay himself.

The tweet claims that Halladay did not tell the fan about the photo. Halladay said he hopes the man in the photo sees it through Twitter.

Fans debated on social media whether the stunt was funny or mean.

Did you think Halladay's stunt was funny? What athlete do you wish you had a surprise photo memory with?