Attanasio boys perform anthem
Giants @ BrewersApril 4, 2016 | 00:03:07
4/4/16: Mark Attanasio's boys Dan and Mike resume a tradition started by their grandfather as they sing the national anthem on Opening Day
4/4/16: Mark Attanasio's boys Dan and Mike resume a tradition started by their grandfather as they sing the national anthem on Opening Day