First half results:

Rangers vs Napoli 0-0
Chelsea vs Salzburg 0-0
Real Madrid vs Leipzig 0-0
Copenhagen vs Sevilla 0-0
Juventus vs Benfica 1-1
Macabi Haifa vs PSG 1-1
Manchester City vs Dortmund 0-0

All the favorite teams who are expected to win easily in this match seem to have difficulty scoring goals. I watched Manchester City vs Dortmund, it was good but for me it was boring. There weren't many chances throughout the game and even Manchester City didn't have a shot on goal. The change in strategy in the second half is expected to be good to achieve maximum results for the favorite team above.