Umpires to announce replay reviews to fans
Does Football Have a Future?
The Invention of Instant Replay Lemelson Center for the Study of Invention and Innovation
Instant replay has even more amazing changes yet to come – The Denver Post
It's a Ferrari, you just need the right driver' – ex-FIFA referee defends VAR amid Liverpool row
Howard Webb has previous with ref mistake replay as Paul Merson fumes about Liverpool VAR error
History of Instant Replay
History of Instant Replay
NFL passes Jim Schwartz rule - NBC Sports
Microsoft and NFL Expand Tablet Use for Replays, Despite Rocky Start