Later this evening. Well be asking a Marine Biologist more about the carnivorous critters that attacked a boy in melbourne. Us Vice President mike pence rubbishes rumours that hes preparing a run for president in 2020. Thats all ahead on bbc news. Now on bbc news, its time for sportsday. Good evening. Im olly foster at the london stadium. Heres whats coming up in world athletics sportsday. Four golds will be won here tonight. How close can laura muir get to the podium in the 1500 metres . It was bronze in rio for Sophie Hitchon. Shes got Medal Chances in the hammer. And six races in six days Wayde Van Niekerk is getting ready to go in the 200. And im gavin ramjaun. In the rest of the days sport englands cricketers have won the 4th test and the series against south africa. Once again, ali lands the knockout blow. Good evening. Its the fourth day of competition here at the World Athletics Championships and we could see some british medals. So so much look forward to this week. It was a b