Tolman earned the save in Tuesday's 6-3 win over the Phillies after tossing a scoreless ninth inning.
Simpson will start a bullpen game Wednesday against the Phillies, Mark Zuckerman of NatsJournal.com reports.
Webb (6-5) took the loss Tuesday against Atlanta, allowing two runs on two hits and a walk while retiring only two batters out of the bullpen.
Lile went 1-for-1 with a three-run home run during the Nationals' 6-3 win over the Phillies on Tuesday.
Abrams didn't play in Tuesday's game against the Phillies due to neck tightness, Mark Zuckerman of NatsJournal.com reports.
Kent did not factor into the decision Tuesday against the Phillies, allowing three runs on four hits and three walks while striking out four across five innings.
Manager Craig Counsell said Tuesday that the Cubs have shut down Miller's (elbow) rehab, Meghan Montemurro of the Chicago Tribune reports.
Kelly isn't in the lineup for Tuesday's game against Atlanta.
Abrams is out of the lineup for Tuesday's game against the Phillies.
Ford (hand/wrist) is starting behind the plate and batting seventh Tuesday against the Phillies.
That was some overdue good news for the Nats on their just-completed road trip to far-away Seattle and Arizona, winning two of three vs. each, and threatening a sweep of the D-backs until running into Corbin Burnes on Sunday. Now the question is if Washington is going to be able to push the envelope a bit further on this homestand, but at the outset it won't be easy vs. a hot Cubs side that enters D.C. having won 12 of 15, and posting wins in the first four starts made by rookie sensation Cade Horton. Worryingly for Washington, Tuesday starter Trevor Williams has not posted good numbers thus far at home (6.48 ERA in five starts at Nats Park). Play Cubs on Run Line
