Pittsburgh Penguins forward Jake Guentzel will miss the start of the 2023-24 NHL season after undergoing right ankle surgery earlier this week.

The Penguins announced Friday that Guentzel underwent a successful procedure at Twin Cities Orthopedics in Minnesota on Wednesday. The two-time All-Star is scheduled to be re-evaluated in 12 weeks, which would leave him sidelined into at least late October.

Pittsburgh opens its season Oct. 10 against the Chicago Blackhawks. 

Guentzel hurt his ankle at some point this offseason and the injury progressively worsened during recent training sessions, according to Penguins president of hockey operations and general manager Kyle Dubas.

"As Jake continued to increase the intensity of his preparation for the upcoming season, it was apparent that his ankle injury was not resolving in a way that was satisfactory to he or the Penguins," Dubas said in a team statement. "In collaboration with Jake - his representative Ben Hankinson of Octagon Sports, the Penguins medical team led by Dr. Dharmesh Vyas of UPMC Sports Medicine, and Dr. (Chris) Coetzee - it was decided that surgery would be the best way to ensure Jake would be at his best in 2023-2024."

Guentzel has led the Penguins in goals in each of the last two seasons and tied a career high with 40 in 2021-22, a campaign in which he finished with a personal-best 84 points.

The 28-year-old enjoyed another productive season in 2022-23 with 36 goals and 37 assists in 78 games. His 11 power-play goals last season were a career high and tied for the team lead.

Guentzel has spent his entire seven-year career with the Penguins and has compiled 197 goals and 217 assists in 453 regular-season games. The Minnesota native led Pittsburgh with 13 postseason goals as a rookie in 2016-17 to help the team to its most recent Stanley Cup championship.

Guentzel is also one of seven players in franchise history with six consecutive seasons of 20 or more goals, a list that includes franchise legends Mario Lemieux, Jaromir Jagr, Sidney Crosby and Evgeni Malkin.