At the time of the surgery, Penguins general manager Jim Rutherford told the Pittsburgh Post-Gazette that the injury bothered Kessel all season. Kessel finished third on the Penguins in goals (26) and points (59), playing all 82 regular-season games. He led the Penguins in scoring in the Stanley Cup Playoffs with 10 goals and 22 points in 24 games as Pittsburgh won the championship.
Kessel has not missed a game in six seasons.
"It's just kind of worked out that way," he said. "I try to play no matter what. I've got to be really banged up to not play."
Defenseman Trevor Daley, who sustained a season-ending broken ankle in Game 4 of the Eastern Conference Final against the Tampa Bay Lightning on May 20, said he has been skating for about three weeks.