It’s a bit unusual for a seven-year veteran to depart a playoff team and sign a multi-year deal with a rebuilding organization.

But that’s exactly what Trevor Williams did when he agreed to a two-year, $13 million deal with the Nationals over the weekend after spending the last two seasons with the Mets.

Although he was left off the Mets roster for the Wild Card Series against the Padres, the 30-year-old got his first taste of a pennant race this year and was expected to be included on the Division Series roster had New York advanced.

Now he’s coming to D.C., where the Nats are coming off their third straight last-place finish in the National League East. But the right-hander understands the situation and is comfortable committing to the Nats for two years.

With such a young team in a rebuilding phase, Williams doesn’t know too many current Nationals. He had only just met manager Davey Martinez over the phone earlier this week. But he is familiar with Josh Bell, who was Williams’ teammate for five years in Pittsburgh and spent the last 1 ½ seasons in Washington, and Craig Stammen, the former Nationals draft pick who spent the first seven years of his big league career in D.C. and knows Williams from playing for his hometown Padres over the last six years.