In order to make room for Severino, the Nationals transferred reliever David Carpenter to the 60-day disabled list.

Tanner Roark had a shortened start in the minors on Monday so that he could potentially start in Strasburg's place on Friday.

Discuss here: Joe Ross vs. Marco Gonzales.



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More Nationals news

Nationals bullpen implodes again as Cardinals rally for 8-5 win

Storen, Janssen falter in late innings as Washington blows lead for the second straight night, stays 6.5 back.

Drew Storen’s slider a bright spot in Nats’ bullpen

The Nationals reliever has seen an uptick in his numbers thanks to one pitch.

If pitching wins titles, the Cardinals will be tough to beat

Cardinals have the best ERA in baseball.

The two will also be joined by four pitchers and a catcher.

Wilson Ramos is behind the plate for Joe Ross.

His 28 RBI last month tied a Nationals record for most driven in in a single month.

At the worst time possible, the Nationals went 12-17 in August while the Mets went 20-8.

And Matt Williams's thoughts on the Nationals' potential September call-ups.

Discuss here: Gio Gonzalez vs. John Lackey.

Yunel Escobar returns to the lineup after getting hit by a pitch on the right hand on Thursday.

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