Newb question on live sports "replay"

I am brand new to the live streaming concept. I am trying to figure out how to simply accomplish instant replay for soccer games streamed live. We are doing this on the cheap, with three unmanned cameras. I was thinking of using the BD ATEM Studio HD as the switcher. Is there a way to capture each camera into a HyperDeck studio mini and somehow tell it to play back the last 15-20 seconds of capture? This would have to happen really quickly since instant replay is somewhat pointless if it takes too long to play it.

Check vMix Replay

NewTek 3Play is a very good and affordable replay system.
Check them out!

Albert Soelistio
PT Core Media Indonesia

NewTek 3Play ist a well known solution, but costs some money.

When there a unmanned cameras, I think budget is a real problem. So vMix would be a good idea.

Maybe take a look to the CasparCG-based OpenSlomo (openslomo.ru).