Alexander Isak was again key to a very good day for Newcastle United. The striker bagged a fine brace as Newcastle made light work of Tottenham in the Premier League at St James’ Park, with Eddie Howe’s side running out 4-0 winners. It was another fantastic day for the Magpies against Spurs, who rarely looked like threatening despite some early half-chances. Isak made it 17 League goals for the season, further justifying all the hype about him of late. READ MORE: Who is Alexander Isak? Step inside the life of Newcastle United’s scintillating super SwedeAnthony Gordon, after all, predicted that…