Roof repair begins at Arizona Cardinals stadium following damage from thunderstorm

Crews are set to begin fixing the roof of the Arizona Cardinals' stadium.

A storm Thursday caused a piece of the University of Phoenix Stadium's silver outer shell to come off and tear the fabric that's part of the stadium's retractable roof, leaving a 1,500-square-foot hole surrounded by several smaller rips.

Some water also got inside the stadium but didn't damage the scoreboards or other electronics.

Contractors are working to determine how long it will take to fix the roof. Fabric repairs should begin Saturday and repairs to the torn panel will start next week.

Stadium officials say they're hopeful no events will be affected by the damage.

The Cardinals open their preseason schedule at home Aug. 14 against Houston.