On Monday, the Rangers decided to go without an emergency starter on their major league roster. The ability to go without one lasted exactly one day.

General manager Jon Daniels announced Tuesday that RHP Nick Tepesch will be skipped in the rotation Wednesday against Oakland. If the Rangers play on Tuesday, 30-year-old RHP Ross Wolff will be purchased from Triple-A Round Rock. If there is further inclement weather around Rangers Ballpark, forcing a postponement Tuesday, then RHP Yu Darvish would simply be pushed back to start Wednesday.

Daniels said Tepesch felt the blister on the last pitch of his start Friday against Detroit. The problem is healing, but could use a little more time.

The tentative plan is to push Tepesch’s start back until Sunday. After Wolf on Wednesday and Thursday’s off days, RHP Justin Grimm would start the series in Seattle followed by LHP Derek Holland and then Tepesch. RHP Yu Darvish would start one of the games of Monday’s doubleheader at Arizona and would allow both of the remaining healthy members of the opening day rotation to get an extra day of rest.

Wolf, who had not started a game since the end of his first professional season in 2002, joined Round Rock’s patchwork rotation early in the season and has thrived. He has not allowed more than two runs in any of his six starts and has built up to pitching seven innings in his most recent outing on Friday against Colorado Springs. He had been scheduled to start again on Wednesday.