Strasburg threw 53 pitches over three simulated innings in a bullpen session Wednesday, Jessica Camerato of MLB.com reports.
The right-hander is staying on a five-day schedule during spring training, requiring him to toss a bullpen on the Nats' off day rather than making a Grapefruit League start a day late Thursday. If he stays on that routine, Strasburg could toss a bullpen again Monday -- another off day for the club -- before seeing game action again Mar. 14 against the Tigers.