Nationals' Tanner Rainey: Undergoes Tommy John surgery

Rainey underwent Tommy John surgery Wednesday, Mark Zuckerman of MASNSports.com reports.

Rainey was expected to miss the remainder of the season after he was placed on the 60-day injured list in mid-July, and he's slated to be sidelined until at least August 2023 following Wednesday's procedure. Kyle Finnegan has taken over as Washington's closer while Rainey has been unavailable.