Parking next to Xiaomi arena

Hi. We arriving to Riga to watch a Eurobasket game. I am coming with my 4 year old son so getting around with public transport as a non local will be a bit difficult so I am aiming to park my car next to the arena. I did my best to find info online, but I couldn't find anything reliable. Is it usually very hard to find a parking spot next to the arena? The event starts at 21:00 would we have a good chance to park if we arrive early, e.g. 20:00? We bought business club tickets, maybe we have more parking options with it?