The surprise took place during birthday celebrations in the 4th inning at the D-backs vs. Pirates game last night at Chase Field.
[video courtesy of Arizona Diamondbacks]
I'm a sucker for this sort of thing. Here is U.S. Air Force Technical Sergeant Mike Vickers, surprising his son Micah, who turned nine years old yesterday. Vickers returned from Turkey where he has been stationed for the past nine months.