An NHL trade deadline primer, updates on Derek Roy, Evgeni Nabokov and Sergei Gonchar, plus the latest on the Sharks, Coyotes and Penguins.

TORONTO STAR: Kevin McGran presents a comprehensive primer for the upcoming NHL trade deadline.

BUFFALO NEWS: Bucky Gleason reports Sabres center Derek Roy could be facing his final days in Buffalo, though management has not indicated to him the possibility he could be moved. Roy claimed ignorance about being mentioned in trade rumors, adding he wants to remain a Sabre.

Isles and Nabokov to talk contract.

NEWSDAY: Arthur Staple reports contract talks will begin soon between the NY Islanders and the agent for goaltender Evgeni Nabokov. There’s no guarantee Nabokov will re-sign, but GM Garth Snow reiterated he’s not shopping the veteran goalie at the trade deadline.

SPECTOR’S NOTE: That won’t stop the speculation, from sources outside the New York area, Nabokov could be available, but it’s obvious Snow has no plans to move him.

OTTAWA SUN: Bruce Garrioch reports Senators defenseman Sergei Gonchar doesn’t want to be dealt, pointing to the club’s improvement this season as one reason he wants to stay.

SPECTOR’S NOTE: The Senators have no reason to move Gonchar, who has one year remaining on his contract, and provides a steady veteran presence to their blueline. My guess is he stays put.

MERCURYNEWS.COM: Mark Purdy reports the struggling San Jose Sharks need to add scoring punch. “The names are out there, the possible acquisitions and usual suspects who could add some juice to the roster: Teemu Selanne, Ryan Smyth, Jarome Iginla, Tuomo Ruutu, and especially Rick Nash. But here’s the bad news: None of those players may be available to be picked up in a reasonable deal, or even available at all. Things seem to be breaking that way.”

SPECTOR’S NOTE: Hat tip to GJ Berg. Of those players listed, Selanne, Smyth and Iginla aren’t available. Ruutu might be, but the Hurricanes are trying to re-sing him. Nash is available, but the asking price is, as Purdy noted, likely too rich for the Sharks. If the Sharks are shopping for a scorer, and I wouldn’t doubt GM Doug Wilson is, he’ll have to find an affordable option. My suggestions: Montreal’s Andrei Kostitsyn, Colorado’s David Jones, Buffalo’s Drew Stafford.

ARIZONA REPUBLIC: Jim Gintonio reports Phoenix Coyotes GM Don Maloney is likely to be quiet at this year’s deadline, expressing his happiness over the club’s performance in the past two weeks.

SPECTOR’S NOTE: The Coyotes are riding an eight game unbeaten streak (7-0-1) and are within two points of first in the Pacific Division. Little wonder Maloney could stand pat.

PITTSBURGH TRIBUNE-REVIEW: Dejan Kovacevic doubts the Penguins will be active at the trade deadline.