Alastair Cook bats during a nets session.

Shaun Marsh heads out to bat during a nets session.

Australian coach Darren Lehmann speaks with Michael Clarke.

Stuart Broad speaks with Mike Newell during a nets session.

Mark Wood bowls during a nets session.

Stuart Broad and his team-mates jog.

Joe Root, Jos Butler and Steven Finn have a laugh at the expense of Alastair Cook.

Australian coach Darren Lehmann speaks with Michael Clarke during a nets session ahead of the 4th Investec Ashes Test at Trent Bridge.

Brad Haddin and his team-mates warm up.

Steven Finn in action during a nets session.

David Warner warms up during a nets session.

James Anderson looks on from the stands during a nets session.

Trevor Bayliss in action during a nets session.

Ian Bell holds on to a catch.

Liam Plunkett delivers a ball during a nets session.

Alastair Cook, Paul Farbrace and Trevor Bayliss share a joke.

Australian Chairman of Selectors Rod Marsh speaks to Josh Hazlewood.

Peter Siddle warming up during a nets session.

Fawad Ahmed looks on during a nets session.

Chris Rogers looks on during a nets session.

Australian Chairman of Selectors Rod Marsh speaks to Michael Clarke and Peter Siddle.

Peter Nevill jogs as he warms up during a nets session.