The Washington Nationals have agreed to acquire relief pitcher Hunter Strickland in a trade with the Seattle Mariners, according to Jon Heyman of MLB Network. The deal is pending medicals.

Strickland has spent most of the year on the injured list, just returning recently. He has made four relief appearances thus far this season, allowing three runs on a couple of hits over 3.1 innings of work.

The 30-year-old was originally selected by the Boston Red Sox in the 18th round of the 2007 MLB Draft but never actually played for the Red Sox before being dealt to the Pittsburgh Pirates in July 2009.

Strickland never actually played for the Pirates' major-league club, either, as he was eventually claimed off waivers by the San Francisco Giants in April 2013.

He went on to make his big-league debut the following year, briefly throwing seven scoreless innings across nine relief appearances. Then, the following season, Strickland became an integral part of the bullpen, making 55 appearances and going 3-3 with a 2.45 ERA while allowing 34 hits and striking out 50 batters over 51.1 innings of work.

Strickland continued to impress in 2016, going 3-3 with a 3.10 ERA while surrendering 50 hits and fanning 57 hitters across 61 frames of action, and in 2017, he enjoyed his best year to date, going 4-3 with a 2.64 ERA and giving up 59 hits while registering 58 punchouts through 61.1 innings.

The Thomaston, Ga. native struggled a bit in 2018, pitching to the tune of a 3.97 ERA and logging a 4.42 FIP through 49 relief outings, leading to the Giants allowing him to walk to the Mariners in free agency.