BBC Sport's cricket analyst Simon Hughes looks in detail at England's key wicket on the opening day of the Ashes in Brisbane.
With the help of Hawk-Eye, Hughes explains how the short ball from England paceman Stuart Broad to Australia's Shane Watson was crucial.
Watson was dismissed just before lunch, with captain Michael Clarke also falling just after the restart. Only a late rearguard partnership from Brad Haddin and Mitchell Johnson prevented further capitulation from the home side.
Missed the first day? Find out more on our Ashes catch-up page.