​It's a new day in the nation's capital, and as Nationals fans learn to reckon with life without Bryce Harper, a veteran bullpen arm is on its way to town to bolster Dave Martinez's middle relief options.

As first reported by insider Jon Heyman, veteran left-hander Tony Sipp is signing an ​MLB deal with ​Washington.

Sipp, 35, spent the last five seasons with the ​Houston Astros. He's coming off his most efficient season with the team, having posted a 1.86 ERA and 1.034 WHIP in 54 appearances, though he logged just 38.1 total innings.

Now, he's back in the National League for the first time since his 2013 campaign with the Arizona Diamondbacks. 

And he'll surely heave a few looks at Mr. Harper when the Nats face the Phillies.

Sipp won't be asked to eat up innings, so it's hard to imagine this signing doing much of anything to blow up in Washington's collective faces. All told, everyone needs a stable of lefties, and this particular southpaw has seen a little bit of everything.