About 1,000 workers who staff concession stands at Fenway Park baseball stadium — the iconic home of the Boston Red Sox — and the MGM Music hall next door are planning to strike Friday after negotiations between their union and food service company Aramark failed.

Concession workers at Fenway Park could walk off the job during the Boston Red Sox’s upcoming series against the World Series champion Los Angeles Dodgers. Unite Here Local 26 has given food and beverage provider Aramark until 12 p.