White was banged up on Thursday and did not return. He will likely miss Saturday's game vs. the Canadiens after being listed as day-to-day on Friday. Luckily, it looks as if they will get Artem Anisimov back to replace him at centre.
Gaudette was on the ice for the start of Tuesday's practice but was pulled immediately once the results of his test came back positive. Gaudette will undergo further testing to determine if it was a false positive but this doesn't bode well for him playing on Wednesday.
Couture was hurt on a high-stick from Jeff Carter on Wednesday but said he's good-to-go on Friday. Couture said that his neck is stiff but should play in Arizona. The Sharks' top line has been excellent all season but Couture has just one goal and no assists in his last seven games.
Toffoli was scratched from Saturday's game vs. the Canucks and will miss all three games vs. Edmonton this week. With Toffoli out, Artturi Lehkonen will remain on the Habs' third line on Monday.
Svechnikov was scratched for the last three games but will replace Bobby Ryan (undisclosed) in the lineup on Tuesday. Svechnikov has been efficient so far this season, scoring two goals with two assists in four games.
White suffered an ugly-looking lower-body injury on Wednesday and will not play tonight in Edmonton. The Senators have yet to provide a full update on White but it sure looked like he'll miss an extended period of time.
Carlsson has been in the lineup in the last two games but will be replaced by Nicolas Beaudin on Thursday. Carlsson has just one assist in 12 games this season.
