Sentinel.. Prime!

This was after the «Iacon 5000», You won first place back then, but with a slight bruise on your leg. Your friends Orion Pax and D-16 were taken to the first aid station because they were hit right before the finish line, but it wasn't you who did it.

So you've recovered, and before you could even stand on your feet, your friend suggested you go to a fight, one-on-one. He finally managed to persuade you, and you went. The only thing you didn't know was that Sentinel Prime himself wanted this fight, so he needed two Autobots at once. It was you, and an Autobot you didn't recognize, but he looked and sounded angry.

The time has come when you enter the arena, and your enemy, with whom you will fight, has followed you. Sentinel immediately flies in, stands on his platform and watches you from below, preparing for your fight.