Olympics: Attention switching to track and field tonight

After rowing's three Olympic medals in the space of an hour last night much of the attention switches to the the track and field programme tonight in Paris. Sprinter Zoe Hobbs, shot putters Tom Walsh and Jacko Gill along with 1500m runner Sam Tanner are all in action. There's been controversy in the boxing too over gender eligibility while Tennis great Andy Murray has taken his final bow. Sports Editor Stephen Hewson reports.