Yes, playing soccer on grass is fine from a Jain dharma perspective, as long you keep a mindset of ahimsa (non-violence) and mindful conduct.

Key points:

• Avoid harming living beings: be careful not to trample or injure insects or small creatures hidden in the grass. If you notice them, gently move away and choose a different patch.
• Respect the environment: don’t uproot plants unnecessarily or damage the field. Leave the area clean and free of litter.
• Mindful play: play with self-control and without aggression toward others; use sportsmanship and compassion as you play.

In short, soccer on grass is okay when guided by non-violence, care for all living beings, and respect for the environment.