Jansen will sit for the second straight game Friday against the Pirates, Shi Davidi of Sportsnet.ca reports.
Jansen's day off comes right after a run of three straight starts. He's hitting a lopsided but effective .219/.293/.474 through 157 plate appearances this season. Alejandro Kirk will start behind the plate Friday, with Vladimir Guerrero Jr. resting his legs as the designated hitter.