Gabby Logan presents live coverage of the London Anniversary Games from the Olympic Stadium.
Usain Bolt is the star attraction on Friday night with the six-time Olympic champion fine-tuning his Rio preparations in east London.
The star-studded two-day event doubles up as the 10th round of the 2016 Diamond League with Jamaican Bolt racing the likes of Britain's European champion Adam Gemili over 200m.
A whole host of British athletes - with eyes on a prize in Rio - will be hoping to take part including Jessica Ennis-Hill, Dina Asher-Smith, Greg Rutherford and Mo Farah.
Commentary comes from Steve Cram, Andrew Cotter and Steve Backley, expert analysis is led by Denise Lewis, Colin Jackson and Paula Radcliffe with Phil Jones reporting. Show less