Footballer Kylian Mbappe has brought renewed attention to the social role of sports stars, after refusing to be photographed with the French national team. According to reports, the 23-year-old striker at Paris Saint-Germain (PSG) said he would not take part in a photoshoot planned for Tuesday with the World Champions until agreements around image rights were “modified.” The footballer sees online betting as a danger to his younger fans and was frustrated at being linked with obesity-fuelling fast food, says the French newspaper Le Parisien. As Mbappe is widely considered one of the best and m…