What can I carry to Muay Thai Fights at Rajadamnern stadium

Hi folks. I’m a tourist in Thailand. I bought tickets online for the event. I’ve following questions:
1. Do I need to carry print out of ticket will the pdf that came in email enough?
2. Do I need to carry my passport to enter stadium or any other id will do? I’m a foreigner.
3. Can I carry cigarettes and lighter inside with me?

I tried to find this info online but can’t get a definitive answer.

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