A hugely significant meeting of the International Olympic Committee's executive board starts in Argentina today.

Over the next few days, we'll find out which city will host the 2020 Games, and we will also know if a new sport is to be added for that event. 

Squash and a combined bid from baseball and softball are fighting it out to be included at the expense of wrestling. 

Istanbul, Tokyo, and Madrid are in the running to stage the tournament in seven years' time.

However, Tokyo's bid should be under scrutiny. As I reported last week the fallout from the Fukushima disaster may affect any games in Japan's capital despite government denials.