DALLAS (AP) -- The Pittsburgh Steelers have the worst grass field in the NFL, according to the latest survey by the players union.
The AFC champions ranked at the bottom when players were asked to evaluate the fields on a scale of three points for top choice, two for second and one for third.
Worst among the artificial turfs is the one at the Minnesota Vikings' Metrodome, which collapsed during a blizzard in December and forced two games to be moved.
University of Phoenix Stadium, home of the Arizona Cardinals, has the best grass field, while the best artificial turf is in Indianapolis' Lucas Oil Stadium, site of next year's Super Bowl.
Nearly 90 percent of the players believe artificial turf causes more soreness and fatigue and is more likely to shorten their careers.
(Copyright 2011 by The Associated Press. All Rights Reserved.)