ARLINGTON -- An MRI on A.J. Griffin's right shoulder showed no structural changes, giving the Rangers optimism he could return to the rotation before the end of the month and allowing them to tweak the upcoming rotation assignments accordingly.

Griffin, diagnosed with shoulder inflammation, can restart his throwing program as soon as he is "asymptomatic," Rangers officials said. Manager Jeff Banister then said the club would push Derek Holland's next start back a day to Monday, in hopes that it would allow the team to use a spot starter just once.

"I think by doing this it also pushes everybody else back that if Griffin is able to come through it okay then we would only need one spot start," Banister said. "By waiting until you put Derek out there on Sunday and then the spot start, then you start rolling into a situation where you need two."

The most likely spot starter would be Cesar Ramos, who has already given the Rangers one solid spot start. The club avoided using him during Tuesday's slug fest with the White Sox.

Holland has struggled badly in his last two outings, allowing 16 runs on 19 hits in just five innings. Toronto seems to be a particularly rough matchup for him. Dating back to 2013, and including last year's AL Division Series, he has allowed 25 runs in 16.2 innings pitched and nine home runs. Banister said, however, Holland's numbers against Toronto were not a factor in the decision.