Context: By the start of the second round, Drago pummels Creed with ease. Rocky again tries to stop the fight by throwing in the towel. Apollo tells Rocky not to stop the fight, giving Drago a chance to deliver a fatal blow (as Rocky drops the towel causing the fight to stop) to Apollo, who dies in Rocky's arms in the middle of the ring. Drago wins by technical knockout.

Question: who was apollo creed fighting when he died?
Steam of consciousness below:
The relevant information to answer the above question is: Apollo tells Rocky not to stop the fight, giving Drago a chance to deliver a fatal blow (as Rocky drops the towel causing the fight to stop) to Apollo, who dies in Rocky's arms in the middle of the ring.
So, the answer is Drago.