The stadium on the bank of the Vistula river was scheduled to be ready by the end of June, one year before Poland is due to co-host Euro 2012 with Ukraine.
Mikolaj Piotrowski of PL.2012, the firm responsible for co-ordinating preparations for the tournament, was asked if completion of the stadium would be delayed. "Yes, we have identified such risks, as well as some related to quality and security. Key now are talks with the builder that should result in a detailed schedule for fixing this," he told reporters.
"It's too early to speak precisely about exact dates now. There is no risk for Euro 2012 as it is still 380 days ahead of us."
PBG and Hydrobudowa, that are building the arena in collaboration with Alpine Bau, an Austrian unit of Spain's FCC.
