Judge will be available for baserunning purposes and in the outfield, as needed, while he continues his rehab from a chip fracture in his right wrist.
Boone told reporters that the team is a couple of days from making a decision on at-bats for Judge in a simulated game, a step before he will hit in a game. The Yankees want Judge to work off any rust before the postseason.
Judge took live batting practice Monday — the first time he had faced live pitching of any kind since suffering the injury, which occurred when he was hit by a fastball from Royals pitcher Jakob Junis on July 26.
The Yankees were 25-20 in Judge’s absence. On the day he was injured, New York was 65-36 and 4½ games behind Boston in the American League East. On Friday, the Yankees were 90-56, 10½ games behind the Red Sox.
Judge is hitting .285 with 26 home runs and 61 RBIs this season.
Also, injured closer Aroldis Chapman will throw another bullpen session Saturday, a simulated game Monday and then could be activated in the middle of next week.
Chapman has not pitched in a game since Aug. 21 because of left knee tendinitis.
The Associated Press contributed to this report.