Final answer:
The two great champions on the Greek side when Achilles was out of the battle were Achilles and Ajax. These two heroes played a significant role in the Trojan War as depicted in Homer's Iliad.
Explanation:
The two great champions on the Greek side when Achilles was out of the battle were Achilles and Ajax. These two heroes played a significant role in the Trojan War as depicted in Homer's Iliad. While Achilles was a renowned hero, Ajax had a more complex fate and ultimately took his own life.