There’s a train strike on, and it’s a headache for a lot of fans who want to get to the Subway Series.

Saturday evening, the Mets and Yankees are headed back to Citi Field for the second game in the weekend-long, three-game series. The Mets will be looking to make up for Friday night’s 5-2 loss, which also saw pitcher Clay Holmes suffer a fractured fibula during the opening game.

Long Island fans looking to get to the Queens stadium have a challenge of their own: A strike has shut down the Long Island Rail Road for the first time in decades.

The Mets are urging fans to make use of the new Citi Field Direct Shuttle Service, which launched earlier this year. The service provides rides from off-site parking at locations in Long Island, New Jersey and the Bronx.

Additional shuttles will operate from Roosevelt Field in East Garden City and the Walt Whitman Shops in Huntington Station, the Mets said in an announcement. There will also be shuttles from the Manhasset LIRR Station for the duration of the strike.

Those driving should allow for extra time and use nearby discounted parking.

The Mets and Yankees are back at Citi Field again Sunday, then meet again in September at Yankees Stadium.

It’s not clear how much longer the strike, which began at midnight Saturday morning, will go on. A union spokesperson told Gothamist Saturday they don’t expect to be back at the negotiating table that day.

If the strike continues into the workweek, the MTA plans to deploy limited shuttle bus service for commuters to connect to the city’s subway stations.