Borussia Dortmund Erling Haaland reveals his technique for improving performance off-field, the Norwegian tallied 44 goals across all competitions last season but says that’s not good enough as the goals could have been 50. The striker has impressed the world with his performance in the European stage with his Champions League goals for RB Salzburg. The player has not slowed down in pace even after Borussia Dortmund locked him in for four and a half years. Using special glasses to filter the blue light from electronic devices, ice baths, constantly being on top of one fitness are few of his techniques to de-stress but most of all he watches his every goal and analyses his mistakes thus he claims boldly he could have gone for 50 goals.