OAKLAND -- The A's held a brief, understated ceremony on Thursday in remembrance of the seventh anniversary of the 9/11 terrorists attacks.

Prior to the opener of a four-game series against the visiting Rangers at McAfee Coliseum, representatives of the Coast Guard ISC Alameda Honor Guard marched through a door in the center-field wall to present the nation's colors.

After a moment of silence for the victims of 9/11 and the men and women who have lost their lives in military service in the fight against terrorism, Anthony Smith of the U.S. Coast Guard sang the national anthem with the stadium's flags flying at half-mast.

After the anthem, two helicopters from the Coast Guard performed two stadium flyovers. The ceremonial first pitch was delivered by Adm. Thad Allen, a Commandant of the Coast Guard.

As part of Emergency Preparedness Night, the first 5,000 fans received a miniature flashlight/keychain and a miniature first-aid kit. The first 10,000 fans were given a small American flag.

The A's took the field wearing navy-blue hats made especially for the occasion, with Oakland's logo in red, white and blue.