06/13/2013 07:40 EDT | Updated 08/13/2013 05:12 EDT

Blue Jays swapping weekend starters in Texas to give Josh Johnson's blister more time to heal

ARLINGTON, Texas - The Toronto Blue Jays are swapping their weekend starters in Texas to give Josh Johnson an extra day for a blister to heal.

Johnson will now pitch the series finale Sunday against the Rangers. The right-hander pitched five innings against Texas at home on Sunday, when he had a blister on his right middle finger.

R.A. Dickey will move up a day to start in Johnson's spot Saturday. The knuckleballer will still be pitching on normal rest.

The change was announced before the four-game series opener in Texas on Thursday night.

The Blue Jays had initially pushed all their starters back a day after their game Wednesday night at the Chicago White Sox was postponed because of the forecast for storms.

Dickey pitched Monday night against the White Sox.