NFLPA: League must invest in grass playing surfaces

(Photo credit: Danielle Parhizkaran / NorthJersey.com / USA TODAY NETWORK / USA TODAY NETWORK)Two days after Aaron Rodgers went down with a torn Achilles, the NFLPA asked the league to eliminate artificial turf playing surfaces.

NFLPA Executive Director Lloyd Howell said in a statement Wednesday that the players prefer natural grass fields, defining the request as a safety issue.

"Moving all stadium fields to high qual