The St. Louis Cardinals are three-point favorites to hand the Washington Redskins their second loss of the season Sunday in Washington.

The Cardinals are expecting to break out of their offensive slump (16 points in two games) any time, especially with everyone healthy. But quarterback Jim Hart has a mysterious and disturbing case of interceptions. Redskins are looking slow.

This week's NFL matchups: Philadelphia (1-1) at Detroit (1-1) - Eagles offense nonexistent. Detroit by 9 (up from 7).

Pittsburgh (1-1) at Cleveland (2-0) - Both teams coming off bruising encounters; this should be another physical game, with Steelers holding an edge on defense. Pittsburgh by 6.

N. Y. Giants (1-1 at Atlanta (1-1) - Two improving squads. Falcons have put some discipline into their defense. Atlanta by 6 (up from 3).

New England (1-1) at N. Y. Jets (0-2) - New England by 12 (up from 10. Green Bay (1-1) at Minnesota (1-1) - packers have been getting exceptional play from defensve ends Mike Butler and Bbo Barber. Put Pack's lack of offense will stymie them. Minnesota by 11.

Tampa Bay (0-2) at Dallas (2-0) Game marks the first meeting between two exciting young backs, Tony Dorsett and Ricky Bell. Dallas by 22.

New Orleans (0-2) at Chicago (1-1) Walter Payton will have field day against New orleans Chicago by 10 (up from 8).

Buffalo (0-2) at Baltimore (2-0) Buffalo's offense has not scored a touch-down. Baltimore by 13.

San Francisco (0-2) at Los Angeles (1-1) - 49ers generally troublesome to the Rams and particularly to Ram quarterbacks. Joe Namath won't have much time to relax but 49er offense is confused. Los Angeles by 13.

Denver (2-0) at Seattle (0-2) at Seattle (0-2) Bronco defense too touch. Denver by 15 (up from 13).

Houston (2-0) at Miami 2-0) This will be Dolphins' first effort against a three-four, and they'll be facing one of the best. Oilers QB Dan Pastorini has put his running backs among the league's top receivers. Miami by 4.

Cincinnati (1-1) at San Diego (1-1) Bengals will open up at last against a still-questionable secondary. Cincinnati by 7 (up from 6).

Oakland (2-0) at Kansas City has weak offensive line. Oakalnd by 13.