Dunn (shoulder) threw another simulated game Monday and will likely head out on a short rehab assignment if he experiences no residual effects Tuesday, the team's official site reports.
The right-hander reportedly looked good during his time on the hill Monday, flashing a wicked curveball for a strike early in the outing and impressing throughout. Manager Scott Servais noted that Dunn had more conviction on his pitches than earlier in his rehab process and added he'll likely make at least one rehab appearance with High-A Everett or Triple-A Tacoma before possibly returning to the big-league club as a reliever.