Concession workers at Fenway Park in Boston are back to work after a brief strike. Union officials said workers are prepared to walk off the job again if a deal is not reached soon.

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.

On the third day of the strike Sunday, some visitors obliged, stopping to buy and eat hot dogs outside, or eating lunch at a restaurant before heading to the game. But inside the park, it was business as usual as others opted to buy Fenway Franks at concession stands ran by replacement workers.