Introducing SI Tennis' Instant Replay, a recap of the best highlights, GIFs, and photos as we move into the business end of this week's tournaments. With play spread out across all over the world ...

Welcome to Instant Replay, a recap of the best highlights, GIFs and photos as we move into the business end of this week's tournaments. Serena Williams had never played Monica Niculescu before ...

For the former problem, the National Federation of State High School Associations, or NFHS, is slowly opening up to the idea of allowing instant replay to check calls in multiple sports offered ...

Instant replay is a good thing ... that would be ready within five minutes to change an umpire's mind. Here's a GIF to watch over and over and over: I'm pretty sure I see Michael McKenry's ...

It led to a “wet film” (kinescope) replay of one goal in one game that was aired several minutes after the live play. It was not “instant replay” as we know it today, and Retzlaff’s idea ...