It will be Arena's chance to win a fourth MLS Cup.
â€śTwo good attacking teams,â€ť Galaxy coach Arena said. â€śI expect to see some goals.
â€śI have no idea [what to expect].
â€śWe'll see when we kick off on Saturday.â€ť
He added: â€śLast year's final, I think the weather conditions were a little bit of a factor.
â€śI think although there's a possibility of rain, it will probably be no worse than this, and it will make for a little bit more of an attractive game, perhaps a little bit more wide open. But who knows?â€ť