Head coach Paul Maurice said Friday that Marchand (leg) is expected to miss approximately six weeks, Jordan McPherson of the Miami Herald reports.
Petrovic was loaned to AHL Charlotte on Thursday.
Entwistle was taken off the non-roster list and placed on waivers by Florida on Wednesday, per Elliotte Friedman of Sportsnet.
Helleson (lower body) hopes to return at the end of Anaheim's upcoming road trip, per Zach Cavanagh of The Sporting Tribune on Wednesday.
Dostal will tend the twine at home versus Edmonton on Wednesday, Zach Cavanagh of The Sporting Tribune reports.
Marchand sustained an apparent left leg injury in Tuesday's game versus the Kings, and there was no update on his status following the contest, Jameson Olive of the Panthers' official site reports.
Ekblad (personal) is not expected to suit up in Tuesday's clash against the Kings, per Jameson Olive of the Panthers' official site.
Markstrom will defend the road net against the Kings on Tuesday.
Barkov (lower body) will be out for approximately 6-8 weeks, Jameson Olive of the Panthers' official site reports Tuesday.
Forsling (upper body) will suit up Sunday in Anaheim, per Jameson Olive of the Panthers' official site.
