England v South Africa, first Test, day two at Lord's

Ian Bell and Kevin Pietersen run between the wickets Photograph: Stu Forster/Getty

Dale Steyn makes his approach past the umpire Photograph: Adrian Dennis/AFP

Pietersen is out after he gloves a ball to Mark Boucher off the bowling of Morne Morkel Photograph: Adrian Dennis /AFP

Paul Collingwood pulls a ball past short leg fielder Hashim Amla Photograph: Stu Forster/Getty

Morkel celebrates the wicket of Tim Ambrose Photograph: Tom Shaw /Getty

AB de Villiers goes flying through the air in an attempt to run out Broad Photograph: Stu Forster /Getty

Bell celebrates his 150 Photograph: Sean Dempsey/PA

Amla looks on as Stuart Broad ducks under a bouncer from bowler Dale Steyn Photograph: Adrian Dennis /AFP

Broad hits a ball from Makhaya Ntini Photograph: Tom Hevezi /AP