Jason Botterill will be granted permission to interview with the Buffalo Sabres for their vacant general manager position, sources told the Tribune-Review on Wednesday.

Botterill, in his fifth season as Penguins assistant general manager, had not been contacted about the Buffalo opening as of Wednesday morning, when a front-office shakeup cost longtime Sabres general manager Darcy Regier his job.

Penguins GM Ray Shero declined comment. He does not publicly comment on employees under contract.

Botterill, 37, is viewed as a rising star in management circles, mostly because of his handling of the salary cap with the Penguins. He owns a master's of business administration degree from Michigan and worked with NHL Central Registry before joining the Penguins in the 2007 offseason.

Botterill played for the Sabres, and Buffalo's upper management includes Ken Sawyer (senior adviser) and Ted Black (president). Sawyer and Black worked for the Penguins when Shero was hired after the 2005-06 season.

In addition to managing the cap and handling contract negotiations, Botterill manages the Penguins' hockey operations department. He also runs AHL affiliate Wilkes-Barre/Scranton and assists on scouting.

Botterill replaced Chuck Fletcher, Shero's first assistant general manager, when Fletcher left to take over the Minnesota Wild during the 2009 Stanley Cup playoffs. In-house candidates to replace Botterill would include: Tom Fitzgerald, assistant to the general manager; Dan MacKinnon, director of player personnel; and Randy Sexton, co-director of amateur scouting and a former NHL general manager.