Entanglement Time Travel

While I was in the shower today, an interesting thought dawned over me. Although it may not be scientifically accurate, I still think its worth mentioning.

Suppose we are able to transport photons through the dimension of time. Lets also suppose that the photon was sent to a time period before the entanglement existed. However, upon exiting, an observer viewed the photon at the exact moment that it passed through. Would the entanglement be broken as a result of the observer viewing the photon or because it was sent back to a time before the entanglement existed?

Extremely Interesting.