Underdogs Is Now Open on 9th Street By Foobooz· 10/12/2012, 1:10 p.m. Devoted foodies and restaurant newbies love Foobooz. Sign up now for our twice weekly newsletter. Grub Street’s Collin Keefe was at the new Underdogs location today where he snapped this shot and spotted a Geno’s employee ordering a dozen Underdogs hot dogs. Read More About: East Passyunk Hot-Dogs Italian Market Underdogs You Might Also Like Your Guide to Eating at Philadelphia International Airport All the Tomato Pie You Should Be Eating in Philadelphia Right Now Here’s Where to Find the Best Sicilian Food, According to This Philly Author