The Sharks claimed their first win in Sydney since 2000 as they overcame a 14-man Waratahs side 23-15 in their Super Rugby match on Saturday.
The Durbanites played the majority of the second half against a depleted Waratahs team after lock Jed Holloway was red-carded.
Earlier in the match, it was the Sharks that struck first when Dan du Preez burst over the tryline from close range.
The Waratahs responded with a Jake Gordon touchdown in the 25th minute.
Those were the two highlights in what was an otherwise rather scrappy first half (10-10).
The match turned on its head when Holloway was shown a red card soon after the restart for a strike to Thomas du Toit's head.
To make matters worse for the Waratahs, Jack Dempsey was then also sent to the sin bin for a dangerous tackle, while Andre Esterhuizen immediately struck for the Sharks with a well-finished try.
From there, Curwin Bosch knocked over a couple of penalties.
Waratahs (15):
Tries: Jake Gordon and Bernard Foley.
Conversion: Foley.
Penalties: Foley.
Sharks (23):
Tries: Dan du Preez and Andre Esterhuizen.
Conversions: Curwin Bosch (2).
Penalties: Bosch (3).