L.J. Hoes will be called up on Monday.
And right-hander Asher Wojciechowski will be sent to Triple-A Fresno to open up a 25-man roster spot. Houston wants an extra position player for its three-game series in San Diego, a National League stadium. Hoes will probably be shipped back to Fresno on Thursday.
Javy Guerra (shoulder) is scheduled to being a rehab assignment Monday with Triple-A Charlotte.
Guerra has been sidelined since April 13 with mild inflammation in his right shoulder. He had rattled off three straight scoreless appearances for the White Sox before landing on the disabled list and should be ready return to Chicago's bullpen later this week.
White Sox sent LHP Eric Surkamp outright to Triple-A Charlotte.
The 27-year-old left-hander was designated for assignment over the weekend to clear a roster spot for Scott Carroll. Surkamp owns a 6.20 career ERA in the majors.
Edinson Volquez has dropped the appeal of his five-game suspension.
Volquez was given the five-game sentence Saturday for his role in last Thursday's benches-clearing brawl with the White Sox, during which the right-hander landed a punch on an unsuspecting Chicago player. Volquez is eligible to return to the rotaiton May 2.
Rays transferred C John Jaso from the 15-day disabled list to the 60-day disabled list.
Jaso injured his left wrist on a slide into third base during the Rays' season-opening game April 6 against the Orioles. It was initially called a contusion, but it's clearly much more serious than that. He won't be eligible for activation until early June.