Heat vs Celtics live stream: How to watch game 3 of NBA Playoffs Eastern Conference Finals online right now

Marcus Smart bringing the ball upcourt in the Celtics vs Heat live stream
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It's time for the Heat vs Celtics live stream, so are you ready to watch online? Well, we already know one player who will only be able to watch: the Celtics' center Robert Williams III is out with knee soreness! 

After going down 0-1 in game 1, the Celtics managed to regain key players who made sure they were going home with a tie series for two more NBA playoffs live streams at home.

Heat vs Celtics live stream channels

Next game: Game 3, Miami @ Boston at 8.30 p.m. ET today (Saturday, May 21).
Where to watch in the U.S.: The Heat vs Celtics game is set to air on ABC and ESPN3. ESPN3 is available on Sling TV, currently on sale at 50% off for the first month.
Watch from anywhere: with ExpressVPN.

The Celtics basically won game 2 in the first half, but after being down to start. Trailing by 10 (18-8), Boston managed to score 56 points in 31 possessions. This is a remarkable efficiency and a failing of Miami's defense. They finished the first half with 70 points, 25 above Miami's 45. 

One of the biggest names of game 2 was Boston's Marcus Smart, who was returning from a foot sprain — but still managed to almost field a triple-double (24 points, nine rebounds, 12 assists). He even played over 40 minutes (longer than any of his teammates). Jayson Tatum (27 points) and Jaylen Brown (24 points) also contributed heavily.

Jimmy Butler (29 points) was just not enough for Miami, which is now down one P.J. Tucker, who left in the third quarter (left knee contusion). The closest Miami got was 17 points, but then Boston went on another run. 

The Celtics are 6.5-point favorites in Game 3. The over/under is 207.5.

Also, we've got all the Warriors vs Mavericks details for game 3.

How to watch Heat vs Celtics live streams from anywhere on Earth

Having trouble actually getting ESPN or TNT? Even if you can't watch the Heat vs Celtics live streams on cable, you're not out of luck. With a virtual private network, or VPN, you can appear to be surfing the web from your home town (or somewhere that blackouts won't hit), and access the same streaming services you already paid for. 

Not sure which VPN is right for you? We've tested many different services and our pick for the best VPN overall is ExpressVPN. It offers superb speeds and excellent customer service. But you've got other VPN options as well. Here's our top pick.


We think speed, security and simplicity make ExpressVPN second to none. During our tests, we saw fast connection times, and we're impressed by the service's ability to access more than 3,000 services spread out across 160 locations in 94 countries. 

Heat vs Celtics live streams in the U.S.

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The Heat vs Celtics live streams are going to be on ABC and ESPN3 at 8:30 p.m. on Saturday (May 21). 

If you've already cut the cord and don't have a cable package? With the right pick from our best cable TV alternatives, you'll be able to watch all of these games. But for as much as we like FuboTV, it fails here without TNT, a must have for NBA fanatics.

Instead, you should get Sling TV, one of the best streaming services. ESPN and TNT are both included in the Sling Orange package, which costs $35, which is pretty low for live TV services (and the lowest rate for one with ESPN). Sling is a perfect place to watch all of the NBA playoffs, as ABC games will simulcast on ESPN3. Sling Orange gets you TNT, ESPN, ESPN3, and its Sports Extra pack gets you NBA TV.

You could also pull down ABC with one of the best TV antennas.

Sling TV:

Sling TV: You can get ESPN and TNT in the Sling Orange package. The 30-plus channels in the lineup include AMC, CNN, Food Network, AMC, Comedy Central, HGTV and many more. And it's currently offering 50% off the first month!

Heat vs Celtics live streams schedule

All times below are in ET.

* = If necessary

  • Game 1: Miami 118, Boston 107
  • Game 2: Boston 127, Miami 102
  • Game 3: May 21 at 8.30 p.m. (ABC)  
  • Game 4: May 23 at 8.30 p.m. (ABC)
  • Game 5*: May 25 at 8.30 p.m. (ESPN)
  • Game 6*: May 27 at 8.30 p.m. (ESPN)
  • Game 7*: May 29 at 8.30 p.m. (ESPN)

Heat vs Celtics live streams in the UK

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NBA fans in the U.K. need look no further than Sky Sports for all their Playoff needs. Sky will be showing all games on Sky Sports Main Event and Sky Sports Arena, though the timings aren't great for U.K. fans, with games typically starting at 1.30 a.m. BST.

If you already have a Sky subscription that doesn't include Sports, you'll need to pay £22/month to add those channels. You'll also gain access to coverage in 4K and HDR, so long as you also have an HDR-ready Sky Q box and HLG-compatible TV.

You could also consider the Sky NBA League Pass, which offers every NBA game for just £14.99/month, plus loads of extra features including archived games on demand — helpful if you want to watch the next day — condensed replays and more. 

If you don't want to shell out for a full Sky sub, you could also consider its Now Sports streaming service. This gives you 24-hour access for £9.99 or month-long access for £33.99 but Sky is currently offering a great deal here: you can sign up for six months of access for just £25/month right now. Now Sports is available on virtually every streaming device out there and is a great option if you don't already have Sky. 

Not in the U.K. right now? You may need a little help from a service such as ExpressVPN.

Heat vs Celtics live streams in Canada

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Hoops fans in Canada can catch Heat vs Celtics live streams with TSN.

Heat vs Celtics game 3 starts at 8:30 p.m. ET (Saturday, May 21) on TSN1.

If you're having trouble finding all the games, ExpressVPN may be your ticket.

Heat vs Celtics live streams in Australia

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Aussies can watch the Heat vs Celtics  live stream on Kayo Sports, which has every one of the NBA Conference playoff games this year. But beware the time difference: you'll need to go by the above lists and add 14 hours to convert ET to AEST.

Kayo offers a 14-day free trial for both its Basic and Premium plans, more than enough time to watch the playoffs. The Basic package costs $25 per month thereafter. 

The $35 per month Premium Kayo plan gives you all the same things as the normal plan, but it offers three simultaneous streams. The Basic plan gives you two streams at the same time. 

Not in Australia but usually a Kayo subscriber? You may need a little help from a service such as ExpressVPN.

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Henry T. Casey
Managing Editor (Entertainment, Streaming)

Henry is a managing editor at Tom’s Guide covering streaming media, laptops and all things Apple, reviewing devices and services for the past seven years. Prior to joining Tom's Guide, he reviewed software and hardware for TechRadar Pro, and interviewed artists for Patek Philippe International Magazine. He's also covered the wild world of professional wrestling for Cageside Seats, interviewing athletes and other industry veterans.