Portugal can move top of qualification group I with a win over Serbia . Victory would move them eight points clear of Sunday 's opponents . Manager Fernando Santos wants to qualify for Euro 2016 early on . Cristiano Ronaldo will be the key man , and he was showing off in training . Comment: Euro 2016 state of play , Portugal have work to do to qualify .
Portugal can move top of qualification group I with a win over Serbia . Victory would move them eight points clear of Sunday 's opponents . Manager Fernando Santos wants to qualify for Euro 2016 early on . Cristiano Ronaldo will be the key man , and he was showing off in training . READ : Euro 2016 state of play , Portugal have work to do to qualify .