Jansen went 2-for-4 with a home run, a double, three RBI and two runs scored in Tuesday's 11-7 loss against the White Sox.
DeGrom (9-9) took the loss Tuesday against the White Sox, allowing eight runs on six hits and five walks while striking out two over 3.2 innings.
The Nationals are expected to recall Perales from Triple-A Rochester on Wednesday, Kyle Williams of TheBanner.com reports.
The Nationals optioned Bird to Triple-A Rochester following Tuesday's game against the Rockies.
Waldron will serve as the opening pitcher in Wednesday's game against Colorado, Mark Zuckerman of NatsJournal.com reports.
Rangers manager Skip Schumaker said Wednesday that Garcia (shoulder) threw two bullpen sessions last week at their facility in Arizona, Evan Grant of The Dallas Morning News reports.
The Rangers announced Wednesday that Higashioka (forearm) began throwing out to 60 feet, Evan Grant of The Dallas Morning News reports.
Ruiz is absent from the lineup for Tuesday's contest versus the Rockies.
Chaparro is absent from the lineup for Tuesday's contest against the Rockies.
The Nationals designated Williams for assignment Tuesday.
Really nice afternoon in MLB and was prepared to be done, but have to throw a half-unit down here because the only truly good hitter the Nationals still have who is healthy is CJ Abrams (.279, 29 HR, 91 RBI), and he's sitting. An utterly anonymous lineup now against Jacob deGrom. Peak Jacob deGrom, this number is -267. But he's a long way from that, just a pretty good pitcher these days. And shaky lately so why this is manageable, but he has been better overall at the Globe with a 2.93 ERA. If Abrams were playing, I likely am not.
