Robson, the former England and Newcastle manager, believes the current generation of players are ruining the sport through shows of petulance towards referees, with high-profile incidents involving Ashley Cole and Javier Mascherano doing nothing to improve the situation.
"It´s a very big problem at the moment. It has got worse and I think in a way it is not only down to the self-discipline of players - and that has to improve magically - but also down to the authority and clout of managers," he told BBC Radio Five Live.
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