Clean sheet

Why does the goalkeeper do not have a clean sheet statistic if he has played a match?

A clean sheet occurs when a player or team successfully prevents the opposing team from scoring throughout the entire duration of a match. For a goalkeeper to be credited with a clean sheet in their seasonal statistics, they must have played the entirety of the match, completing all 90 minutes on the field. This requirement ensures that the goalkeeper has been directly involved in the game's defensive efforts from start to finish.