Dundee extended their lead to four points at the top of the SPFL Championship with a 1-0 win over Queen of the South.
Ryan Conroy converted from the spot after Martin Boyle had been fouled in the area by Queens keeper, Jim Atkinson who saw a straight red.
Both teams hit the woodwork in the second half, Iain Russell rattled the bar for the home side and Christian Nade hit the post with a 30 yard shot.