Havertz's late goal clinches Arsenal win over Sporting

Kai Havertz came off the bench and scored a 91st-minute winner as Arsenal clinched a 1-0 victory over Sporting in the first leg of their Champions League quarter-final in Lisbon.Just as it seemed a cagey game was heading for a stalemate, Havertz produced a brilliantly composed finish from fellow substitute Gabriel Martinelli's pass to give the Gunners a potentially crucial advantage ahead of next week's second leg.