Bjorn moves three ahead

BMW Open leaderboard:

23 under - Thomas Bjorn (Den) (67)

20 under – John Bickerton (60)

Bernhard Langer (Ger) (67)

17 under – Ian Poulter(68)

Richard Bland (67)

David Park (71)

14 under – John Daly (USA) (72)

Paul Casey (72)

Selected others:

12 under – Padraig Harrington (72)

10 under – Justin Rose (72)