Manchester City goalkeeper Ederson studied Rangers footage as he attempted to brush up on rival penalty-kick takers.
It has been revealed that the Etihad shot-stopper watched footage of Allan McGregor as he prepared to face Crystal Palace in the Premier League.
New footage of the Brazilian goalkeeper in a Netflix documentary has unveiled the moment he studied McGregor in action against Celtic back in 2021.
In a Togetherness: Treble Winners clip Ederson is seen in the dressing room at Manchester City being advised by coaches over penalty takers.
And the 31-year-old is locked in on watching upcoming opponent Odsonne Edouard ahead of the match against Palace.
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Amongst the footage is Edouard's penalty against Rangers in May 2021 where McGregor made a stop from 12 yards.
The former Scotland goalkeeper denied Edouard pulling a goal back for Celtic with the massive penalty stop in a 4-1 win for Rangers.
Ederson watched the footage ahead of the match between City and Palace in August 2022 as he and team-mate Stefan Ortega prepared for all eventualities.
Crystal Palace would take a shock 2-0 lead at the Etihad but the hosts rallied to run out 4-2 winners as Bernardo Silva netted before an Erling Haaland hat-trick.