​This story was originally published on QSR. To receive daily news and insights, subscribe to our free daily QSR AM Jolt.QSR MagazineFirehouse Subs, the firefighter-founded restaurant brand known for hearty, hot subs, today announced its first professional sports league partnership: a multi-year deal with Major League Baseball (MLB), making Firehouse Subs the ‘Official Sub’ of MLB across the United States and Canada. To celebrate the start of the second half of the baseball season, Firehouse Subs will launch “Extra Innings, Extra Subs” – a season-long promotion that rewards fans all summer long.AdvertisementAdvertisementAdvertisementBeginning Friday, July 17, any time an MLB game goes into extra innings on Friday, Saturday, or Sunday, guests can buy a medium sub and get another medium sub free – redeemable the following Monday through Wednesday. The offer is redeemable through the Firehouse Subs app or at Firehousesubs.com with promo code “EXTRA.”Beyond “Extra Innings, Extra Subs,” Firehouse Subs will also serve as Official Partner of the MLB PLAY BALL initiative and Presenting Partner of MLB Pitch, Hit & Run. PLAY BALL, a priority MLB initiative launched in 2015 under Commissioner of Baseball Robert D. Manfred, Jr., promotes participation in baseball and softball with an emphasis on casual play. Pitch, Hit & Run – celebrating its 50th anniversary in 2026 – gives boys and girls ages 7–14 the chance to compete in skills competitions, with Finals held at the World Series presented by Capital One.The partnership marks the first national sports league deal in the brand’s 31-year history, launching as the MLB season enters its second half and the push toward October begins.“We weren’t looking for just any sports partnership, we were looking for the right one,” said Carolina Berti, Chief Marketing Officer at Firehouse Subs. “Baseball is that partner: a sport built on community, and a brand built to serve one. Together we’re launching ‘Extra Innings, Extra Subs,’ a way for us to share more of our delicious subs back to the communities that show up for us all season long. And through MLB’s youth programs – PLAY BALL and Pitch, Hit & Run – we get to invest in the next generation of fans across the U.S. and Canada.”AdvertisementAdvertisementAdvertisement“This new partnership with Firehouse Subs highlights some of the most important efforts that MLB undertakes outside our ballparks and some of the most exciting moments that take place on our diamonds,” said Uzma Rawn Dowler, MLB Chief Marketing Officer & Senior Vice President, Global Corporate Partnerships. “From PLAY BALL and Pitch, Hit & Run to ‘Extra Innings, Extra Subs,’ Firehouse is sliding into our partnership headfirst, and we can’t wait to see it come to life across MLB’s robust media platforms.”As the Official Sub of MLB, Firehouse Subs also brings its longstanding commitment to first responders to the national