They dominate the paint. And the glass. And don't be surprised if they swat one or two of your shots.
A look at the nation's top five centers (listed alphabetically, with 2003-04 stats), including four of five who averaged double-doubles last season:
Sandora Irvin, TCU, 6-3, senior
"She has always been a tremendous shot blocker, but she has worked hard to improve her conditioning and has a nice mid-range game." -- Nancy Lieberman
"She's a defensive force and could become the NCAA's career leader in blocks after this season." -- Mechelle Voepel
Janel McCarville, Minnesota, 6-2, senior
"She's the consummate big -- but also has the best footwork of any big in the game right now and is raising the bar for the rest of the country's posts." -- Nancy Lieberman
"Last year, she proved she had the most diverse skills for a big woman in the college game. The Gophers are her team now." -- Mechelle Voepel
Jessica Moore, Connecticut, 6-3, senior
"Provided she's able to come back 100 percent this season from the knee injury suffered at the Final Four, she is a
big part of what will make UConn a title contender once again." -- Mechelle Voepel
Shawntinice Polk, Arizona, 6-5, junior
"She has continued to develop her game away from the basket. She has good foot speed, runs the floor well and is just a great target inside." -- Nancy Lieberman
"Now as a junior, Polk should be an even more assertive force inside and raise her shooting percentage into the 60s." -- Mechelle Voepel
Note: Polk is a repeat selection from 2003-04's preseason honorees.
Honorable mention: Carla Thomas, Vanderbilt; Jessica Davenport, Ohio State.
ESPN analyst Nancy Lieberman, ESPN.com columnist Mechelle Voepel and Melanie Jackson, who coordinates ESPN.com's women's basketball coverage, contributed to the selection process.