#2 This first-time ever match could have also been a last-time showdown

Let's face it: Both Goldberg and The Undertaker probably don't have a lot left to prove in the Professional Wrestling industry anymore. Both men are over 50 years old and even though no one can particularly tell them to stop wrestling in the future, last night's match also showed us reasons why there might never be another match like this.
I do think that The Undertaker won't retire after his recently culminated match against Goldberg, and it seems like the Deadman will appear in the near future. But what about Goldberg?
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The man himself has already been inducted into the WWE Hall of Fame, and everyone generally assumed that was it for Goldberg until of course, his match against The Undertaker was eventually announced. If last night was any indication, it seems that Goldberg might finally hang up his boots for good.