Righthander P.J. Walters told the Rochester Democrat and Chronicle on Thursday that he is being promoted to the Twins and expects to start sometime this weekend.

Walters is 4-2 with a 3.31 ERA for the Red Wings. Indications are that Walters could start Saturday against the Tigers. Walters won his first game as a Twin, in his second start for the team, at Comerica Park on May 17, 2012.

The Twins weren’t able to stretch out Walters in spring training, making it difficult for him to win a job in the rotation. After a couple rough outings early, Walters has thrown at least six innings in seven consecutive starts. He’s pitched into the seventh inning six times.

In two moves this week, the Twins have called up Walters and righthander Samuel Deduno. Deduno arrived in Detroit on Thursday and will pitch Friday. Righthander Kyle Gibson, who has thrown complete-game shutouts in two of his past three starts, did not get the call.

Gibson is 3-5 with a 3.25 ERA in nine starts for the Red Wings, but he has sometimes followed good starts with poor ones. The Twins won’t call up Gibson until he strings together good outings — or injuries on the major league staff force the Twins’ hand.

And, even then, the Twins have one more option to call up in righthander Cole De Vries, who has recovered from a tight forearm and is pitching at Rochester.