A boot to the head is not automatically a red card, and the retracted leg is why this one was a caution

Referee got this right

On-field decision

🟨Yellow card

Correct decision

🟨Yellow card

What was given

Free kick and a yellow card for Guruzeta.

The call

Free kick and a yellow card. Kicking through at a player he could see was reckless, and the retracted leg keeps it below excessive force.

Walk through it yourself

See the exact referee logic step by step