Defending Super Rugby champions the Reds scored a try after the hooter to earn a 21-25 Super Rugby victory over the Waratahs in Sydney.
The Reds looked a little lacklustre in the encounter and had to rely on Quade Cooper's replacement Mike Harris for all of their points until the hooter sounded when Dom Shipperley ran 75 m to score the Reds only try.
Fly half Harris maintained his 100 % kicking percentage with six penalties from six attempts and also added the conversion to extend his record to 15 consecutive succesful kicks in Super Rugby.
The Waratahs outscored last year's champions by two tries to one scoring one try in each half.
Up until Shipperley's last-ditch intervention, the Waratahs had looked to be getting the upper hand after South African scrum-half Sarel Pretorius's try on his debut had put the home side in front with their second try.
But the Reds, badly missing the attacking spark of sidelined Wallaby fly-half Quade Cooper, somehow found a way to score a try that had threatened to elude them for the whole game.
The Reds profited from the Waratahs' ill-discipline at the breakdown for Mike Harris, deputising for Cooper at number 10, to slot over six penalties from as many kicks as well as converting Shipperley's try for a match haul of 20 points.
Pretorius, the South African Super Rugby player of the season last year, breached the Reds' defence in the 67th minute when he reached out to plant the ball over the try-line, sneaking through from the base of a Waratahs' ruck.
The Waratahs scored the only try in the first half through Wallaby number eight Wycliff Palu after Pretorius had jolted the ball loose from Wallaby scrum-half Will Genia near the Reds try-line.
That try had the Reds heading in at half-time leading 12-8 through Harris's goalkicking.
The Waratahs also had a try disallowed by hooker Tatafu Polota-Nau in the 54th minute after South African referee Jaco Peyper had ruled a forward pass from winger Tom Kingston that television replays suggested was flat.
The Reds go on to play Western Force in Brisbane next week, while the Waratahs take on the Rebels in Melbourne.
Final Score Waratahs 21 Reds 25
Tries - W Palu, S Pretorius
Pen - D Halangahu 3
Con - D Halangahu
Tries - D Shipperley
Pen - M Harris 6
Con - M Harris
Referee: Jaco Peyper
AR1: :Ian Smith
AR2 : Angus Gardner
TMO :George Ayoub
15. Adam Ashley-Cooper ,14. Tom Kingston ,13. Rob Horne ,12. Tom Carter ,11. Brackin Karauria-Henry ,10. Daniel Halangahu (C), 9. Sarel Pretorius ,8. Wycliff Palu ,7. Chris Alcock ,6. Dave Dennis ,5. Dean Mumm ,4. Kane Douglas ,3. Sekope Kepu , 2. Tatafu Polota-Nau ,1. Benn Robinson (VC)
Replacements:16. Damien Fitzpatrick ,17. Paddy Ryan ,18. Lopeti Timani ,19. Jono Jenkins ,20. Brendan McKibbin ,21. Bernard Foley ,22. Nathan Trist
1. Ben Daley , 2. James Hanson , 3. James Slipper , 4. Rob Simmons , 5. James Horwill (c) , 6. Scott Higginbotham , 7. Beau Robinson , 8. Jake Schatz , 9. Will Genia (vc) , 10. Mike Harris , 11. Digby Ioane , 12. Ben Tapuai , 13. Anthony Faingaa , 14. Dom Shipperley , 15. Luke Morahan
Replacements : 16. Albert Anae , 17. Greg Holmes , 18. Van Humphries , 19. Liam Gill , 20. Radike Samo , 21. Ben Lucas , 22. Jono Lance , 23rd man - Chris F'Sautia