1st Test day 4 review | Day 5 is finely poised, Root & Smith a cut above and Cummins leads from the front!

Mel Jones is joined at Edgbaston by Kevin Pietersen & Kumar Sangakkara as they run through day four of the first Ashes Test of the series. We look at who's in the driving seat ahead of a pivotal final day and how players such as Joe Root, Stuart Broad & Pat Cummins have stepped up to the plate.