Atletico Madrid coach Diego Simeone admitted a slow start cost his side as it slumped to a 3-1 defeat to Valencia. When Atletico Madrid announced the signing of Antoine Griezmann in the summer, it was seen as something of a coup for the Spanish champion. The 23-year-old had been a shining light at Real Sociedad, scoring 16 times for the Basque outfit last season before starring for France as they reached the quarterfinals of the World Cup in Brazil. He was hot property, with Arsenal heavily linked, but Atleti acted both quickly and astutely in signing him up, meeting his release fee -- believed to be 30 million...