via Eric Stephens of the OC Register,

Surgery on Nate Thompson's left shoulder Thursday revealed two labral tears that will cause the Ducks center to miss the first two months of the 2015-16 season.

A Ducks spokesman said Friday that Thompson will need five to six months of recovery, which could take his return into December. Thompson first hurt his shoulder on April 11 during the team's regular-season finale at Arizona....

The Ducks could enter 2015-16 with Chris Wagner as an option at fourth-line center or possibly address the position with a move over the summer. Wagner is a restricted free agent that will need to be re-signed....

One option no longer available to them is former prospect William Karlsson. Karlsson was sent to Columbus at the March 2 trade deadline in a package that brought the Ducks veteran defenseman James Wisniewski.

Wisniewski did not appear in any playoff games with the Ducks as they used the same six on defense but he still has two years left on a contract that'll pay him $5 million in 2015-16 and $3 million in 2016-17, making the defender part of their plans unless they attempt to move his salary.