Pierzynski will be eligible to come off the DL on May 21. Pierzynski was a late scratch before the Rangers' game Tuesday in Milwaukee and sat out again Wednesday after the test. Pierzynski has put up a .263/.297/.411 line on the season with four home runs. Pierzynski on the 15-day disabled list Wednesday after an MRI exam revealed a strained right abdominal muscle. With an off day scheduled Thursday, the Rangers are expected to summon catcher Robinson Chirinos from Triple-A Round Rock before their next game, Friday at Houston. All rights reserved. Along with the good reports, Daniels said Chirinos could give manager Ron Washington some versatility with the ability to play a couple spots in the infield.