Which international multi-sport event hosted 10,768 athletes including Moroccan boxer Aboubakr Lbida beginning July 25, 2012?
Aboubakr Lbida: Aboubakr Seddik Lbida (born 26 January 1980 in Hay Hassani) is a Moroccan boxer. 2012 Summer Olympics: The 2012 Summer Olympics, formally the Games of the XXX Olympiad and commonly known as London 2012, was a major international multi-sport event celebrated in the tradition of the Olympic Games, as governed by the International Olympic Committee (IOC). 2012 Summer Olympics:  The first event, the group stage in women's football began on 25 July at the Millennium Stadium in Cardiff, followed by the opening ceremonies on 27 July.
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