Sinestro and Optimus Prime

On Mars, Sinestro, wearing a Green Lantern Ring, came before Optimus Prime and stated his purpose. "...The new OA planet has been established. Every trusted Green Lantern needs to undergo the strictest training." Sinestro floated in the air with his arms crossed, scrutinizing the large blue-toned figure before him as he spoke coldly. Sinestro could not help but be suspicious, because he knew very well that this mechanical lifeform called Optimus Prime was a life created by Donnie. It was practically a miracle.