Erat, the team's leading scorer, was held out for the second straight game after missing the Predators' 6-1 win at Chicago on Sunday. Erat has 18 goals and 57 points.
Predators winger Jordin Tootoo, who also has an upper-body injury, did not dress on Tuesday. Tootoo appeared to sustain the injury during a first-period fight with Chicago winger Brandon Bollig on Sunday. He has six goals and 23 assists this season.