Auron's opponent's expression sunk. He was in grave danger. Behind him was the outside of the arena while Auron was in front of him. Meanwhile, on his left and right sides was the outside of the arena as well.
Auron's opponent wanted to win. So, obviously, he would not escape to the back or sides since it would mean he lost the match. He only had one way which was to charge at his front and fought against Auron.
However, to fight against Auron was not easy. Auron had already proved that he could beat his opponent in a close combat fight.
Auron's opponent was in a dilemma. To fight or not to fight. While thinking, Auron's opponent kept on using his fire spells. He hoped that it would give him more time to think. He also hoped for Auron to make a mistake so he could escape this predicament.