Nicolas Jackson rolls home the first of his two goals for Chelsea against Djurgarden. — AFP/File Stockholm: Chelsea strolled to a comfortable 4-1 win at Djurgarden in the first leg of their UEFA Conference League semi-final on Thursday to all but book their spot in the final.In the other semi-final, Spain´s Real Betis take a 2-1 lead into the return fixture against two-time runners-up Fiorentina.First-half goals from Jadon Sancho and Noni Madueke put Chelsea in control in Sweden, before...