SAN JOSE -- The Earthquakes' new stadium won't open until the 2015 season because of another construction delay, a source involved with the project said Thursday.
The source asked not to be identified because team officials plan to make an announcement regarding the stadium Monday.
An Earthquakes spokesman declined to confirm or deny the schedule change -- the second adjustment in three months.
The Quakes will continue to use 10,525-seat Buck Shaw Stadium, the facility that has been home since the team re-entered Major League Soccer in 2008.
Santa Clara athletic director Dan Coonan said Thursday "it's a possibility" that the Earthquakes would play the entire 2014 season at Buck Shaw. "We're here if they need us."
Quakes officials originally hoped to play in the new 18,000-seat building for the start of next season.
But they announced in late June that they wouldn't open the $60 million stadium until the middle of the 2014 season because of problems with the excavation of the site of the former Food Machinery Factory.
The privately funded stadium will be located across the street from Mineta San Jose International Airport.
When builders began excavating the site in June they encountered concrete vaults deeper than expected. They estimated they could finish the project midway through the 2014 MLS season.
With another change, team officials will have to address what to do with the season tickets already sold for the new facility.
San Jose Councilman Sam Liccardo, who represents District 3 where the stadium is located, referred questions to the Earthquakes.
But he added, "We're going to celebrate a wonderful, iconic stadium as the gateway to our city regardless of what month it opens."
Contact Elliott Almond at 408-920-5865. Follow him on Twitter at twitter.com/elliottalmond.