Attorney Steven O'Meara said in a statement Wednesday that 17-year-old Steven Consalvi "knows that he committed a foolish act and is truly sorry for his actions."
O'Meara says the family wants to apologize to the fans, the team, the Philadelphia Police Department and ballpark security workers.
He says the family hopes that people understand "teenagers do impulsive things."
At a game against the Cardinals on Monday, police used a stun gun to subdue Consalvi after he jumped onto the field and ran around in circles in the outfield.
Players applaud use of Taser
The video of a 17-year-old fan being chased around the field and finally Tasered at a Philadelphia Phillies game drew laughs as it became an Internet sensation.
Around the major leagues, though, many players and managers aren't joining in.
While some question the use of force on a teen who ran on to the field as a lark, plenty of players, baseball officials and security officers say it's difficult to make that determination in the moment.
They reference tennis star Monica Seles's stabbing years ago, and Royals first base coach Tom Gamboa's beating in Chicago as they stressed the need to feel safe on the field.
