Stephen Strasburg threw his second bullpen session in four days on Monday before the Washington Nationals took a 2-1 series lead over the Los Angeles Dodgers in the NLDS.

Strasburg threw 20 to 30 pitches. He was ruled out for the NLDS, but the Nationals hope he could return if the team advances.

The right-hander has been on the disabled list since Sept. 7 because of a strained flexor mass in his right arm.