CHICAGO (MarketWatch) -- The Green Bay Packers football team said Thursday that it will expand and update their stadium, adding about 6,600 seats to Lambeau Field. The team plans to spend about $130 million on the project and will fund it with no taxpayer money involved. It gets underway with a groundbreaking on Sept. 1 and the Packers hope to have it wrapped up in time for the 2013 season. The new seats will be offered first to season-ticket holders, with those who have held them the longest the first in line. Any who opt for the new seats will have to give up their current ones, the team said.