1.   The main stadium has a retractable roof.

2.   Bank One Ballpark is the first sports facility ever to combine air-conditioning and a natural grass playing field under a retractable roof.

3.   Beattie said a new downtown stadium, equipped with a retractable roof, will help sell players on the organization and bolster attendance.

4.   A drizzly evening left Carlos Moya and Lleyton Hewitt hermetically sealed inside Rod Laver Arena after the retractable roof had been closed to the elements.

5.   A retractable roof might give the tournament some energy every day, and it would give television something fresh for its money.

6.   A task force is studying whether a new ballpark, perhaps with a retractable roof like the one on the Skydome in Toronto, could be built.

7.   Against Sampras, with the retractable roof closed because of foul weather, Philippoussis served brilliantly and was never broken.

8.   Aimed at the Soviet Union, they carried powerful nuclear warheads and were stored horizontally on railways in underground concrete silos whose retractable roofs dotted the Midwest countryside.

9.   But there are ballparks serving fresh strawberries and whipped cream, ballparks steeped in history and spanking new ballparks with retractable roofs.

10.   By then, the retractable roof over Astros Field will be closed most days, and the air-conditioning blowing full blast.