Amazon will stream the Next Gen ATP Finals tennis tournament in November.
The firm snapped up the rights to the tournament shortly after securing broadcasting rights to the NFL's Thursday Night Football matches in the US. It also secured the rights to the ATP Tour in the UK, outbidding sports giant Sky in the process.
The Next Gen ATP Finals sees the world's best 21-and-under players compete. It takes place from 7th-11th November, which is the end of the tennis season.
It's also a testbed for new technology within the sport. This year's tournament, for example, will do away with human line judges from the court, replacing them entirely with Hawk-Eye's electronic line calling system.
The deal also includes the rights to next year's Next Gen ATP Finals.
"Innovation is at the heart of everything we're doing with the Next Gen ATP Finals, and the way in which we present and broadcast the event is central to that," said Chris Kermode, ATP executive chairman and president.
"Our agreement with Amazon will give this year's inaugural tournament in Milan an international reach in a digital space that is only becoming increasingly important in the world of sport and entertainment."
"We know live sports attracts a passionate fan base, many of whom are Prime members," said Greg Hart, vice president of Amazon Video. "We are thrilled ATP has awarded distribution rights to Amazon, showing their commitment to streaming live sports."
Amazon has also produced three documentaries focussing on up-and-coming star players. These will air on Amazon Prime Video.
The firm recently added live sport to its portfolio by offering customers Eurosport Player, albeit for an extra charge. Its arch rival Netflix offers next to no sport at all.