The Atlanta Falcons selected Haynes in the seventh round (166th overall) of the 1988 NFL draft. Haynes was the 16th wide receiver drafted in 1988.[1]
On September 11, 1988, Haynes made his professional regular season debut and made his first reception on a 12-yard pass by Chris Miller as the Falcons lost 29-21 against the New Orleans Saints.[2] On October 30, 1988, Haynes made his first career touchdown reception on a 19-yard pass by Chris Miller during the second quarter of a 27-24 victory at the Philadelphia Eagles in Week 9. He finished the game with two receptions for 68 receiving yards and two touchdowns receptions.[3] He finished his rookie season in 1988 with 13 receptions for 232 receiving yards and four touchdown receptions in 15 games.[4]