Robin Thicke's Blurred Lines is set to achieve the highest weekly sales for a single in the UK this year having already shifted 140,000 copies.

With two days of trading still to go, the Interscope/Polydor release featurring TI and Pharrell Williams had sold 139,724 units by the end of business on Thursday, according to the Official Charts Company. That left it only 23,660 units behind 2013's biggest weekly sale for a single achieved by Columbia act Daft Punk's Get Lucky and ...