Firehouse Subs Promotion: Any Extra MLB Innings on Fri, Sat, or Sun & Receive B1G1 Free Medium Sub (Valid Mon thru Wed for 2026 MLB Season)

*Firehouse Subs* [firehousesubs.com] has a Major League Baseball (MLB) "Extra Innings, Extra Subs" promotion. *Buy One Medium Sub, Get One Free* Monday - Wednesday Order online or in app. ...