It seems that we are okay to continue with football sessions:
https://elpais.com/…/fases-desescalada/madrid/alcobendas/
“Play activities for children
Free time activities can be offered for children and adolescents, maintaining the recommended hygiene and social distance measures. Outdoor activities can have a maximum of 300 participants, monitors included. In closed spaces, the maximum capacity is the one that allows a separation of 1.5 meters between people. Activities are allowed in groups of up to 15 people, in addition to the monitor. The use of masks for people over six years of age is mandatory in public, closed or outdoor spaces, although the distance of 1.5 meters between people can be maintained, except for medical contraindications. Children’s recreational parks can reopen from July 3 as long as they do not exceed 40% of the maximum capacity.”