PHILADELPHIA (CBS) — The Phillies announced on Thursday that team president and CEO David Montgomery would be taking a leave of absence from the team after undergoing cancer surgery in May. Former Phillies general manager Pat Gillick will take control of Montgomery’s duties while he is away.

Below is the statement released by the Phillies:

“The Phillies announced today that David Montgomery is taking a medical leave of absence from the organization while he continues to recover from jaw cancer surgery which occurred on May 19, 2014. During the leave, Pat Gillick, the Club’s former General Manager and its current Senior Advisor to the President/General Manager, will assume David’s responsibilities.

Gillick stated the following: ‘I have the highest regard for David Montgomery, as does everyone in our industry. I am glad to be of assistance to the Phillies.’

The Club looks forward to David returning to his roles as General Partner, President and Chief Executive Officer when he is fully recovered.”

Montgomery has been a part of the team’s ownership group since 1981. He has served in the role of president since 1997.

Check Out These Sports Stories:

Watch & Listen LIVE