Cristiano Ronaldo will be sidelined for six to eight weeks due to the knee injury he sustained in the Euro 2016 final, meaning he will certainly miss the UEFA Super Cup on August 9 and could also be absent for the opening fixtures of the new La Liga season. While this is far from the scenario Zinedine Zidane hoped for, the Real Madrid manager has no choice but to allow his star forward the time needed to recover. The injury occurred in the 25th minute of the Euro 2016 final when Ronaldo was caught in a heavy challenge by France’s…