BELGRADE (Reuters) - Aleksandar Mitrovic's rich vein of form continued as he scored a first-half brace which helped Serbia to a 4-1 home win over Luxembourg in 2022 World Cup qualifying on Saturday that sent them top of Group A.

Serbia nosed ahead of Portugal on goal difference with both teams on 10 points from four games, four ahead of third-placed Luxembourg. Ireland and Azerbaijan have one point each after their 1-1 draw in Dublin.