Dundee manager Paul Hartley speaks highly of Celtic midfielder Scott Brown.
Mark Warburton's Rangers side play host to Dundee at Ibrox tomorrow.
The Celtic captain has been in fine form at the beginning of this season.
Paul Hartley says he will not sell anyone this summer.
The Dundee striker has been linked with Leeds United, Aston Villa, Queens Park Rangers, Derby County and Bolton Wanderers.
Dundee FC manager Paul Hartley reveals he wants to keep hold of Leeds United target Greg Stewart.
The likes of Rangers and Leeds United have been linked with the forward.
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The Scottish Premiership side will have to get past Dumbarton if they hope to meet Mark Warburton's men in the next round of the competition.