BBC Sport https://www.bbc.co.uk/sport/av/football/65418143 https://ichef.bbci.co.uk/ace/standard/240/cpsprodpb/17B1F/production/_129555079_p0fkp9ht.jpg Newcastle head coach Eddie Howe praised the impact of substitute Callum Wilson, who scored twice in a 2-1 win against Southampton.