Borussia Mönchengladbach midfielder Robin Hack scored two superb first-half goals to clip VfB Stuttgart’s wings with a 3-1 home win in the sleet on Sunday. In their first Bundesliga game back after the mid-season break, third-placed Stuttgart were a shadow of the side which wowed the league in the first half of the campaign. They did pull one back on 56 minutes as Josha Vagnoman rivalled Hack for goal of the match, but Jordan settled matters in stoppage time after Manu Koné’s rocket came back off the bar. “In the first half we just weren’t effective enough,” Stuttgart captain Waldemar Anton to…