Swanson recorded the save in Friday's 3-2 win over the Rangers, throwing 1.1 scoreless innings and allowing a hit and a walk with two strikeouts.
Swanson relieved Keynan Middleton with two outs and runners on first and second in the eighth and struck out Adolis Garcia before finishing the ninth to lock down his first save. Swanson's use in the closer role Friday could be a result of Rafael Montero seeing work in three of the last four games while Kendall Graveman (COVID-19) remains sidelined, or it could be manager Scott Servais rewarding Swanson's excellent 0.69 ERA.