Martinez was optioned to Double-A Frisco on Friday and will not start Saturday's game for the Rangers, as was originally planned, the Fort Worth Star-Telegram's Jeff Wilson reports.

Kyle Lohse was summoned from Triple-A on Friday to make Saturday's start in place of Martinez. It's not a major surprise that Martinez was optioned, given how bad he had been for the Rangers. He will start for Frisco on Saturday and then move to Triple-A Round Rock after the Triple-A All-Star break. It's possible Martinez could find his way back to the big leagues, possibly even to make a few more starts this season, but his 6.45 ERA and 8:15 K:BB in 22.1 innings this year should be enough to scare prospective owners away.