Lopez (groin) completed a live batting practice session Monday, Mark Zuckerman of MASNSports.com reports.

Lopez (groin) is the only reliever in the Nationals' bullpen with any significant closing experience, Bobby Blanco of MASN Sports reports.

Lopez (groin) signed a one-year, $3 million contract with the Nationals on Saturday, Jon Heyman of the New York Post reports.

The Cubs placed Lopez on the 15-day injured list Monday with a right groin strain, Sahadev Sharma of The Athletic reports.

The Cubs activated Lopez (groin) from the 15-day injured list Wednesday, Maddie Lee of the Chicago Sun-Times reports.

Lopez (groin) has rejoined the team and is expected to be activated from the 15-day injured list within the new few days, Meghan Montemurro of the Chicago Tribune reports.

The Cubs placed Lopez on the 15-day injured list Wednesday with a right groin strain, Meghan Montemurro of the Chicago Tribune reports.

Lopez (groin) tossed a scoreless inning of relief to earn a hold in Saturday's 5-3 win over the Nationals. He allowed one walk and struck out one.

Lopez (groin) didn't experience any setbacks following his bullpen session Friday, Kyle Williams of the Chicago Sun-Times reports.

Lopez tossed two scoreless innings of relief in Sunday's 8-3 win over the Cardinals. He allowed a hit and walk, while striking out two.