Substitute Kal Naismith scored the winning goal in the 86th minute.
FootballVideo: Paul Cook's reaction to Pompey's winBy The NewsroomPublished 10th Dec 2016, 18:26 BSTUpdated 14th Dec 2016, 14:07 BST Christian Burgess celebrates Pompey's 1-0 win against Grimsby today. Photo by Joe Pepler/Digital South. PPP-161012-172157006PAUL Cook has given his verdict following Pompey's 1-0 win away to Grimsby.Substitute Kal Naismith scored the winning goal in the 86th minute.Related topics:Paul CookPompeyGrimsby