With each passing day of silence the questions grow louder when it comes to Rick Nash.

Not so much when the Rangers' elite right wing will return from his latest concussion because any absence due to concussion is by definition indefinite.

But there is scientific evidence each successive concussion heightens the chances of another quite possibly with long-lasting effects.

So will Nash and the Rangers have to deal with more in the future? And if so exactly what kind of player can the Rangers expect Nash who turned 29 this off-season to be over the course of his $62.4 million deal which runs through 2018.

The Rangers (2-5-0) fell to 1-3-0 without Nash in Saturday's 4-0 loss to the Devils the second time the team was shut out without him in the lineup.

Nash suffered his second concussion in two seasons with the Rangers early in a 9-2 loss at San Jose on Oct. 8 a high hit that earned the Sharks' Brad Stuart a three-game suspension. Last season it was a high hit into the glass from the Bruins' Milan Lucic that cost Nash four games.

Nash also sat out one game with what the Blue Jackets described as a "mild" concussion in 2002-03 his rookie season.

This is a major issue for a franchise tied into Nash as a marquee player for the long term.

And the Rangers witnessed firsthand how suddenly a career can end because of a concussion as promising defenseman Michael Sauer never made it back to the ice after being hit by the Maple Leafs' Dion Phaneuf on Dec. 5 2011.

Nobody in or around the Rangers' organization is remotely hinting Nash's latest concussion is close to a Sauer-like incident a team spokesman saying only "no change" on Monday when asked for an update on Nash's condition.