How to Say "pitch invader" in Spanish
The Spanish word for “pitch invader” is “espontáneo” — C1 level.
English → SpanishC1
nounC1
someone who jumps onto a sports field

Examples
Un espontáneo saltó al campo durante la final.
A pitch invader jumped onto the field during the final.
La seguridad detuvo al espontáneo antes de que llegara a los jugadores.
Security stopped the intruder before he reached the players.
Using 'un' or 'el'
When this word is a person, it follows the normal rules for people: 'el espontáneo' (the intruder) or 'un espontáneo' (an intruder).
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