Rex Grossman celebrated what he thought was his first touchdown pass by leapfrogging receiver Anthony Armstrong. Oops. Not quite. Turns out Armstrong was down at the 1. When Grossman later connected with Armstrong for a touchdown that counted, the quarterback made a giddy backward trot toward the sideline, then turned around and kept running for another 20 yards or more along the Washington Redskins bench. "Some situations are more emotional than others," Grossman said. "I just react to the moment. I was happy." There was more Good Rex than Bad Rex in Grossman's first Week 1 start since 2007. The quarterback so maligned back then in Chicago completed 21 of 34 passes for 305 yards Sunday with two touchdowns, no interceptions and one lost fumble -- mostly avoiding the type of negative play that has so often defined his career -- as the Redskins opened the season with a 28-14 win over the New York Giants.