Bjorn joins leaders after four holes

BMW Open latest leaderboard:

13under - Jamie Spence after 40 holes

Richard Bland 40

Ian Poulter 40

Thomas Bjorn (Den) 40

12under – Bernhard Langer (Ger) 40

11under – Santiago Luna (Spa) 54

Carl Pettersson (Swe) 54

John Daly (USA) 54

Anthony Wall 53

Peter Senior (Aus) 48

John Bickerton 44

David Lynn 41

Selected others:

8 under – Padraig Harrington 54

7 under – Justin Rose 45