A late goal from Alan Keane gave Sligo a share of the points at Richmond Park after they twice came from behind.
The Saints took a first half lead through Garreth O'Connor's cross which ended up in Brush's goal.
Sligo equalised six minutes into the second half after Gavin Peers headed home a Holmes cross following a Sligo corner.
Alan Cawley put Pats back in front with a wonder goal on 62 minutes before Keane's late late equaliser.
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