Mijares has been struggling. He has given up six hits in three innings and has a 6.00 ERA. He had been a contender to handle eighth-inning duties. The Twins already have lost closer Joe Nathan for the season.
The team announced Saturday that it recalled right-handed reliever Alex Burnett from Rochester of the International League. Burnett started the season with the Twins and made two appearances before being sent down. He allowed two hits with three strikeouts in 2 1/3 innings.
Gardenhire also said that reliever Pat Neshek still has a sore finger on his throwing hand. If there's no improvement by Tuesday, the team will consider moving him to the disabled list.