Kevin Sexton, spokesman for the bargaining committee, speaks to the...

Kevin Sexton, spokesman for the bargaining committee, speaks to the media before entering MTA headquarters. Credit: Newsday/Matthew Chayes

"Today is D-Day, shall we say. So we're heading on in there," said Kevin Sexton, spokesman for the bargaining committee, before walking through the revolving doors into MTA headquarters.

"We're going to give it our best, guys," he said. "We're doing everything in our power to prevent the service disruption."

He said it's "unlikely" the deadline would be extended if talks fail to yield a deal.

As for a sticking point, Sexton said: "We don't agree on the fourth year."

On the table — which the unions reject — is a lump-sum payment being offered by MTA.

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