In 1985, he signed with the Redskins and had a superb rookie season, recording 72 receptions for 926 yards and five touchdowns. Clark quickly established himself as one of the top receivers in the NFL. He followed up his superb rookie season in 1986 with a Pro Bowl year catching 74 passes for 1,265 yards and seven touchdowns. Clark set a Redskin record for receiving yards in a game during a Monday Night Football contest with the New York Giants. He caught 11 passes for 241 yards and a touchdown. The record still stands today as the "most receiving yards in a non-strike game" (Anthony Allen surpassed Clark's tally during the 1987 strike season). The Redskins went on to finish with a 12-4 record and defeated the reigning Super Bowl champion Chicago Bears, 27-13, in a divisional playoff game but lost to the Giants in the NFC Championship game, 17-0.