Washington Nationals fire Dave Martinez, Mike Rizzo - ESPN

The last-place Washington Nationals fired president of baseball operations Mike Rizzo and manager Dave Martinez, the team announced Sunday.

Rizzo, 64, and Martinez, 60, won a World Series with the Nationals in 2019, but the team has floundered in recent years. This season, the Nationals are 37-53 and stuck at the bottom of the National League East after getting swept by the Boston Red Sox this weekend at home. Washington hasn't finished higher than fourth in the division since winning the World Series.

«On behalf of our family and the Washington Nationals organization, I first and foremost want to thank Mike and Davey for their contributions to our franchise and our city,» principal owner Mark Lerner said in a statement. «Our family is eternally grateful for their years of dedication to the organization, including their roles in bringing a World Series trophy to Washington, D.C.

»While we are appreciative of their past successes, the on-field performance has not been where we or our fans expect it to be. This is a pivotal time for our club, and we believe a fresh approach and new energy is the best course of action for our team moving forward."

Mike DeBartolo, the club's senior vice president and assistant general manager, was named interim GM on Sunday night. DeBartolo will oversee all aspects of baseball operations, including the MLB draft. An announcement will be made on the interim manager Monday, a day before the club begins a series against the St. Louis Cardinals.

Rizzo has been the top decision-maker in Washington since 2013, and Martinez has been on board since 2018. Under Rizzo's leadership, the team made the postseason four times: in 2014, 2016, 2017 and 2019. The latter season was Martinez's lone playoff