Real and many other top clubs have been using this for years to measure the CO2 content of the breathing air during training and thus the fitness level of the players. So actually nothing special for Alaba, just like the high expectations for the second half of the season. “We’re in all competitions, we want to be champions and show what we’re made of in the Champions League, that we’re among the best in the world. We at Real Madrid have demands on ourselves and of course we want to live up to them,” said the defense chief recently on ServusTV.
