Nadal's reactions steal the show at the ATP Cup

While news of the hotel worker COVID-19 positive case and subsequent one-day shutdown of tennis in Melbourne sinks in, let's take a moment to appreciate all that has successfully happened. Six tournaments are going on simultaneously at Melbourne Park as the Australian Open start date looms.

The ATP Cup has brought out some of the best players in the world to represent their countries and battle for the coveted title. While Rafael Nadal has yet to take the court, his passionate reactions from the sidelines haven't escaped notice.

On Day 1, it was announced that Nadal wouldn't play due to a tight back. His teammates, Pablo Carreno Busta and Roberto Bautista Agut took care of business with singles wins over John Millman and Alex de Minaur, respectively.

Agut's win over De Minaur was a tight three-set affair, so Nadal's rollercoaster of emotions made sense.

Carreno Busta and Marcel Granollers won doubles for good measure to dismiss Australia, 3-0.

All the while, Nadal did everything he could to help, from cheering to coaching to keeping his nearby teammates engaged.

Australia bounced back on Day 2 with a 2-1 win over Greece. As of now, Nadal is not scheduled to compete in Spain's next match against Greece. With all matches on Thursday cancelled though, he will get an extra day to recover and might take the court after all.