Fiddler announced his retirement from the NHL on Wednesday.
Fiddler is expected to sit out Game 3 in favor of Harry Zolnierczyk against the Penguins on Saturday, Tom Gulitti of NHL.com reports.
Fiddler was ejected for a knee-on-knee hit on Blues defenseman Colton Parayko in Friday's Game 2 loss.
Fiddler scored the game-winning goal in the third period against St. Louis in Game 1 on Wednesday.
Fiddler could be a healthy scratch for Game 1 against the Blackhawks on Thursday, NHL.com reports.
Fiddler (upper body) will not play Saturday against the Jets.
Fiddler won't suit up for Thursday's away game against the Stars due to an upper-body injury.
Fiddler has a single goal in 13 games since joining the Predators in early February.
Fiddler has been traded to the Nashville Predators for a 2017 fourth-round pick, Adam Vingan of the Tennessean reports.
Fiddler (lower body) was activated from injured reserve Saturday.