Eddie Nketiah scored a hat-trick as Arsenal hammered Sheffield United 5-0 in Saturday’s Premier League game at the Emirates. Substitutes Fabio Vieira (88th minute) from the penalty spot and a 96th minute strike from Takehiro Tomiyasu, a first-ever goal for the Gunners by the Japanese, were the other scorers. Nketiah has now scored his first Premier League hat-trick, and is the first Englishman to…