It's live stream time for Novak Djokovic vs. Alexander Zverev. This Olympic-sized rematch is the last step before the final as Djokovic tries to complete a Grand Slam in 2021. Can Djokovic win this US Open?

If anyone will knock Djokovic out of this tournament, it will be Alexander Zverev. And of course, this match is also a semi-final, as was the case in July when the two met, with Djokovic losing 1-6, 6-3, 6-1.

It was the death knell for Djokovic's Golden Slam (all four Grand Slams and an Olympic gold medal). It was Djokovic's first loss in two and a half months since his defeat to Rafael Nadal at the Italian Open. Then in Tokyo, he lost to Pablo Carreno Busta in the bronze medal match. Djokovic and his partner, Nina Stojanovic, had to abandon the mixed doubles due to a shoulder injury.

And now the Serbian ace is trying to correct history against an opponent (and friend) who set him back. Unfortunately, his recent matches have not been easy. It took Djokovic 3 hours and 26 minutes to defeat Matteo Bellettini: 5-7, 6-2, 6-2, 6-3.

Odds for this match are as follows:

Djokovic: -225 favorite Zverev: +175 underdog over-under: 38.5

Zverev has not given up a set since his third-round match against American Jack Sock and looks to be the strongest challenger (again) to Djokovic's long-held dream. Here's how to watch Novak Djokovic vs. Alexander Zverev online:

If you had to leave your "bubble" or suffered a horrible regional power outage and are on cable TV and can't If you are unable to watch the live stream, you are not out of luck. With a virtual private network, or VPN, you can pretend you're surfing the net from your hometown and access the same streaming services you've already paid for.

Not sure which VPN is right for you? We tested a variety of services and chose ExpressVPN as the best VPN overall. They offer great speed and excellent customer service.

Here's how easy it is to stream from anywhere in the world:

1. get a VPN (ExpressVPN is the best choice) 2. connect to the location you want to stream from 3. use your usual streaming service and watch as normal

Exclusive Tom's Guide Discount: in the US, Novak Djokovic vs Alexander Zverev will be streamed live today (September 10).

The match will air on ESPN at approximately 7pm ET/4pm ET.

The US Open matches will be broadcast on the ESPN-affiliated networks and streamed on ESPN3, ESPN Plus, and the ESPN app. It is also broadcast on the Tennis Channel.

If you cut cable, you can watch all of these channels on Sling TV (via Sling Orange) or Fubo TV's entry-level package. Both are on our list of best streaming services, but tennis fans who also like basketball will not want to use Fubo, which has no TNT. Tennis channels can be added with the Sports Extra (Sling) and Sports Plus (Fubo) packages for $11 per month.

British fans may have to stay up late again. Novak Djokovic vs. Alexander Zverev is available on Amazon Prime Video. Match time is 12 a.m. BST tonight.

Prime Video is included with Amazon Prime for £79 per year.

If you are from the UK and want to watch from abroad, you can use a VPN to connect.

Canadian tennis fans can watch a live stream of Novak Djokovic vs. Alexander Zverev on TSN. This service can be subscribed to a la carte or added to a package.

TSN3 is airing the men's semifinals from 3 p.m. to 6 p.m. ET and 7 p.m. to 10 p.m. ET, so you can watch the broadcast of this match.

TSN's streaming-only service starts at $19.99 CAD per month, a much better value than the $4.99 CAD per day option.