Fenway Park concession and restaurant workers went on strike Friday just as the Boston Red Sox open a highly anticipated weekend series against the world champion Los Angeles Dodgers.The union representing Aramark workers at Fenway Park and MGM Music Hall hit the picket line at noon after failing to reach a deal on a new contract.

Concession workers at Boston’s Fenway Park and nearby MGM Music Hall have begun a strike, with no last-minute deal reached in their negotiations with Aramark.

Hundreds of Aramark workers at Fenway Park are on strike and planning to stay out for all of a homestand between the Boston Red Sox and the Los Angeles Dodgers starting Friday night.