The top overall pick in last year's NFL draft completed 23-of-37 passes for 235 yards and one interception to go along with his 3-yard TD toss to Daniel Fells in the first quarter.
The Rams (1-2) used the victory to snap a 10-game losing streak dating back to last season.
Donovan McNabb racked up 236 yards on 19-for-32 passing for the Redskins (1-2), with six receptions going to Santana Moss. Moss accounted for 124 yards and a score but also lost a fumble.
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