SEATTLE -- The Seattle Mariners have promoted Kevin Mather to team president and chief operating officer, replacing Chuck Armstrong, who is retiring at the end of the month.
Mather had been serving as executive vice president of finance and ballpark operations. He has been with the team since July 1996 and had held that position since 1999. Mather oversaw Seattle's financial and ticket services, retail operations, technology and daily operations of Safeco Field, among other duties.
The 51-year-old Mather worked for the Minnesota Twins before joining the Mariners.
Seattle also announced the promotion of Bob Aylward to chairman of ROOT Sports, the regional sports network the Mariners own a majority stake in. Aylward will retain his position as the executive vice president for business operations for the team.