Darvish, who will make his fourth Major League start, has already dealt with the intense scrutiny of facing Ichiro Suzuki for the first time, when the Mariners were in Texas during the Rangers' last homestand.
Texas manager Ron Washington said he doesn't have to say anything to Darvish about facing off against his countryman.
"I don't think I have to control Yu's emotions," Washington said. "I think he's past that. It's obvious [the matchup is] what it is."