ATLANTA — The Braves announced Monday they are leaving Turner Field and moving into a new 42,000-seat, $672 million stadium about 10 miles from downtown in 2017. Atlanta's mayor said the city wasn't willing match an offer from suburban Cobb County worth $450 million in taxpayer funding. Braves executives John Schuerholz, Mike Plant and Derek Schiller said the team decided not to seek another lease at 17-year-old Turner Field and began talks with the Cobb Marietta Coliseum and Exhibit Hall Authority in July.