Escobar, now 34, made his Major League debut with Atlanta in 2007 and had stints with the Blue Jays, Rays and Nationals before being acquired by the Angels ahead of the '16 season. He is scheduled to take the test on Thursday and is expected back in Tempe on Friday.
"I think especially with his background of how he got to this country, he feels connected with it and wants to become a U.S. citizen," Scioscia said.
Worth noting
• Cam Bedrosian, who has been slowed by a groin injury, returned to action and was slated to throw a bullpen session on Wednesday.