Ricardo Gonzalez will have the opportunity to record a wire-to-wire victory in the Johnnie Walker Champion after an two-under-par 70 for his third round at Gleneagles.
The Argentine tied the lead with Bernd Wiesberger on day one and once again finds himself sharing the load, this time with Tommy Fleetwood, who was five-under for his third round.
Frederik Andersson Hed is third on 15-under-par, while Wiesberger has retained a share of fourth with Stephen Gallacher on 13-under.
Brett Rumford, Henry Scott and Ross Fisher are tied for ninth on 12-under-par.