You could probably very easily photoshop the guy out from the back. You have a fairly uniformed background from the bleachers/seating area of the stadium that some "content-aware" fill might do the trick for you. Or a copy and paste.
I just did a rough copy/paste edit on my computer here at work, but I only have CS-4 and doesn't have content-aware fill option. My home computer has the more updated version of photoshop to do that better. Came out okay. But I don't know if you had allowed for image editing so I'm not posting the image to demonstrate the result (though I'd be more than happy to if you're interested in seeing).