Waratahs hold out hope for Foley
The decision on whether Foley will play will be decided on Friday, with head coach Daryl Gibson giving him every chance to take on the Brumbies.
"For Bernard it's all about how he pulls up after training today. We will be monitoring how he goes overnight," said Gibson.
"He's training well, we just need to see how he is. The ultimate decision will lie with our medical team."
Meanwhile, the Waratahs welcome back Will Skelton and Jed Holloway to the starting line-up with Ned Hanigan also back from injury on the bench.
The match will also be Sekope Kepu's 100th match in a Waratahs jersey.
Waratahs: 15 Andrew Kellaway, 14 Reece Robinson, 13 Israel Folau, 12 Irae Simone, 11 Rob Horne, 10 Bernard Foley/Bryce Hegarty, 9 Nick Phipps, 7 Michael Hooper (captain), 6 Jack Dempsey, 5 Will Skelton, 4 Dean Mumm, 3 Sekope Kepu, 2 Tolu Latu, 1 Tom Robertson.
Replacements: 16 Hugh Roach, 17 Paddy Ryan, 18 David Lolohea, 19 David McDuling, 20 Ned Hanigan, 21 Michael Wells, 22 Jake Gordon, 23 Bryce Hegarty/David Horwitz.
Date: Saturday, March 18
Venue: Allianz Stadium, Sydney
Kick-off: 19.45 (08.45)
Referee: Glen Jackson (New Zealand)
Assistant referees: Nic Berry (Australia), William Houston (Australia)
TMO: Ian Smith (Australia)