GOALKEEPER PERFORMANCE IN THE 21/22 PREMIER LEAGUE SEASON
Goalkeeper Performance in 2021/22 Premier League Season With the end of the 21/22 premier league season, the awards have been given out with Son and Salah sharing the Golden Boot and Ederson and Alisson sharing the Golden Boot. Ederson has now won the award 3 years in a row, however, does this mean that he has been the best Goalkeeper in the last 3 years? Most people would disagree. Man City's defence conceded only 0.83 xG /match while Liverpool's conceded 1.03xG/match meaning that a lot of the clean sheets Ederson were influenced heavily by the defence and less on himself. But this begs the question, What Can we Use to Judge the Ability of a Goalkeeper. This is where PSxG comes in. Post-Shot Expected Goals (PSxG) is a metric to measure the likelihood of a shot going in after it has been taken. It measures the quality of the shots a team is allowing. The difference between this and xG is that xG is a pre-shot metric while PSxG is a post-shot metric. xG measures the quali