Sharks GM Doug Wilson is believed to be searching for a strong blueliner to add to his roster, though a deal is not believed to be imminent.
Several teams are looking for help on the backend, including the Detroit Red Wings, Los Angeles Kings, Minnesota Wild, Carolina Hurricanes and Edmonton Oilers, which could drive up the prices on some players other clubs are dangling as trade bait.
The Calgary Flames, New Jersey Devils, Toronto Maple Leafs and Buffalo Sabres are among the teams looking to deal a defenseman.
It's unclear, at this point, what Wilson is willing to move, but with the Sharks off to a 7-0-1 start to the season, he's likely to go all-in if his team continues to perform at the same elite level its shown in its first eight games.