Stewart (shoulder) started throwing in mid-November, but the Twins are unsure if he will be ready for the start of spring training, the Minneapolis Star Tribune reports.

Canterino (shoulder) is expected to work as a reliever next season, the Minneapolis Star Tribune reports. "He's starting to ramp up his throwing again," said Twins General Manager Jeremy Zoll.

The Twins signed McCaughan to a minor-league contract Dec. 4.

The Twins selected Castellano with the ninth pick in the Rule 5 draft Wednesday, JJ Cooper of Baseball America reports.

Twins manager Rocco Baldelli said Tuesday that the team has not yet determined which position Lewis will play next season, Darren Wolfson of Channel 5 Saint Paul reports.

Wallach is not expected to have any issues heading into spring training related to the season-ending left oblique strain he suffered in September, the Minneapolis Star Tribune reports.