It’s a sad, yet happy day in Washington, D.C. One that, unfortunately, was coming sooner rather than later.

Sean Doolittle, the dominant Nationals reliever and fan favorite, announced his retirement today.

Where do you begin with a player and person who has meant so much to an organization and a city?

Let’s start on the field, since he’s retiring from the sport.

After coming over in a 2017 trade with the Athletics, the left-hander, who turns 37 next week, posted a 2.92 ERA, 1.007 WHIP and 75 saves (third-most in club history) over parts of five seasons with the Nats. He earned an All-Star selection in 2018 - the game that year took place at Nationals Park - and played an integral role on the 2019 team that won the World Series.

When Sean Doolittle was traded to the Nationals on July 16, 2017, it was for sure a major change in his career. He was going from the last-place Athletics to the first-place Nats.

What he probably didn’t know at the time was that it was a major life change for him and his soon-to-be wife, Eireann Dolan.

Doolittle brought a lot of value to the Nationals in that trade with the Athletics in that he was under team control for three more seasons after the 2017 campaign ended. After recording a 2.40 ERA and 21 saves to help the Nats win the National League East in 2017, he pitched to a 3.20 ERA and 1.047 WHIP while striking out 132 and walking just 25 with 54 saves over the next three seasons.

Of course, he helped the Nationals win the 2019 World Series, and he was given the Good Guy Award as voted on by members of the local media in each of his first three full seasons with the club.

This offseason, he added some new hardware to his mantle. Doolittle and Dolan were both included in a group of 11 locals who were named Washingtonians of the Year by Washingtonian Magazine in December. It’s an annual honor the publication awards to people “who make our region an even better place.”