
Witamy na Anfield!:)
Moderatorzy: zoltoczerwony, ramar, Juluz, Szpieg1, Gonzo, Daniel, AirCanada
Kod: Zaznacz cały
https://www.thisisanfield.com/2018/07/why-alisson-is-worth-liverpool-paying-world-record-fee-for-a-goalkeeper/
Rated by WhoScored as the best goalkeeper in Europe last season, and starting every game for Brazil at the World Cup, Alisson is the best stopper Liverpool could realistically sign this summer.
Only Pepe Reina kept more clean sheets (18) than Alisson (17) in Serie A last season, and his saves-to-goals ratio of 3.41 stacks up impressively when compared to the likes of David de Gea (3.46), Thibaut Courtois (2.10), Ederson (2.17) and, most significantly, Karius (2.0).
His overall save success rate of 80.1 percent was the highest of any goalkeeper in Serie A, and second only in the world to Jan Oblak (85.8 percent), while he also successfully claimed 90 percent of corners he attempted to win.
One of the most valuable metrics to measure shot-stopping ability is Expected Goals Against (xGA), which uses an algorithm to calculate the likelihood of any given shot from a particular position to be scored.
If a goalkeeper performs at the same level of xGA, that means he would save all the shots he should be expected to save.
Alisson remarkably outperformed his xGA in 30 out of 37 Serie A games last season, conceding 9.46 fewer goals than a typical goalkeeper would be expected to from the shots he faced.
Therefore he earned Roma 10.92 points they otherwise would not have won—effectively the difference between finishing third and sixth.
Quality in possession is one of Alisson’s key attributes, as demonstrated by his forward pass completion rate of 77.4 percent last season (overall pass completion rate of 81 percent).
This was bettered only by Ederson (80.3 percent) in the Premier League, and was still significantly better than Hugo Lloris (66.9 percent)—the second highest in the English top flight.
Notably, Alisson’s forward pass completion rate was vastly superior to Oblak (31 percent)
Alisson’s long pass success rate of 66.3 percent is actually better than Ederson, currently the best ball-playing goalkeeper in the Premier League, while David de Gea languishes at 40.5 percent on that metric, and Oblak on just 34.1 percent.