For roughly an hour after the rest of the Capitals headed into the dressing room, Mike Knuble worked out on the ice with assistant coach Dean Evason. By all appearances, the veteran alternate captain will be a healthy scratch for the third consecutive game tonight against the San Jose Sharks.

Knuble told reporters over the weekend that he believes this is the first stretch in a decade that he’s been a healthy scratch because of his performance. In 53 games this season, Knuble has three goals and 11 points and a team-worst minus-14 rating.

The Capitals’ decision to keep scratching Knuble, 39, makes it hard not to wonder whether the team might consider trading the veteran winger before the deadline on Feb. 27. Knuble, was signed to a one-year extension for the 2011-12 season for $2 million, is set to become an unrestricted free agent this summer.

A few other lineup notes:

— It’s unclear who will be scratched among the defensemen. John Erskine, who played against the Rangers, and Jeff Schultz both came off the ice rather quickly this morning. Dmitry Orlov stayed out to work on his shot for approximately 10 minutes longer, but he does that on a consistent basis.

— While it was an optional skate, as is typical on the second day of back-to-back games, there was nearly full attendance. Of the players on the active roster against the Rangers, only Brooks Laich, Marcus Johansson, Roman Hamrlik and Dennis Wideman did not take part in the session.

Nicklas Backstrom (concussion) did not skate today and remains out indefinitely.

— Mike Green, however, was on the ice today. A little more on Green’s recovery to come.