London: Chelsea, Manchester United and holders Arsenal joined Manchester City in the FA Cup fourth round on Sunday, while third-tier Sheffield United demonstrated their cup pedigree by eliminating Queens Park Rangers.


Arsenal's Alexis Sanchez 

Arsenal progressed after winning 2-0 at home to Hull City in a repeat of last season's final. Per Mertesacker headed Arsenal in front from Alexis Sanchez's 20th-minute corner and Sanchez sealed victory with a precise shot eight minutes from time.