Player rankings 2021

"Xg [Expected goals] Xg is a metric that examines EACH goal scoring opportunity of all players and HOW probable it is that a chance turns into a goal. We take into consideration lots of factors such as the angle to the goal, the distance, how many defenders are in the way, etc. If Xg is = 0,76 , this means that there is a 76% chance that chance will turn into a goal [this is the case for a penalty]. If Xg is = 0,01, it means that there is only a 1% chance that this chance will turn into a goal. "

"Xa [ Expected assists] Expected assists metric is used to measure the quality of an assist during the goal chain. Let’s take a simple example: 2 metres pass on Messi, and then Messi dribbles the ball from halfway to the goal. In this case, you technically receive an assist. Quality of assist : 0,02 = 2%. But when dribbling along the line, passing back to a player the assist has more quality and it is more likely to score: 0,5 = 50% ."