TORONTO -- Twenty-one would be a very cool number for the Toronto Raptors. Before they get it, though, they’ll need to get one.

And one would be beyond cool. Off the charts, historic, potentially transformative and largely indescribable.

Twenty-one: That’s how many teams in NBA playoff history will have overcome an 0-2 start to win a best-of-seven series, if the Raptors manage to close out the Milwaukee Bucks in the Eastern Conference finals. Whether it happens in Game 6 Saturday night at Scotiabank Arena or in Game 7 back in Milwaukee Monday, Toronto would buck outlandish odds -- this is the 289th series to begin with the same team winning the first two games, so we’re talking a 7 percent likelihood (20 of 288).

One: That’s all that stands between the Raptors and the first NBA Final appearance in Toronto franchise history. One more victory in the next three days would validate the risks and twists of this 2018-19 season for the Raptors, while exorcising nearly a quarter century’s worth of demons.

One little win and Toronto finally will break through, capping a stellar six-year run of promising regular seasons and heartbreaking postseasons. They will have earned, in the face of so much uncertainty, their best shot yet at a championship, even if it means going through the mighty Golden State Warriors.

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When Raptors president Masai Ujiri traded for star forward Kawhi Leonard, he was gambling not just that Leonard could recover from the right quadriceps injury that scuttled his 2017-18. He was guessing that swapping in Leonard for former All-Star wing DeMar DeRozan could push Toronto to, well, right where they’re at. And he was hoping Leonard, a rent-a-player able to leave this summer in free agency, would enjoy the whole experience enough to let Ujiri pay him $220 million over the next five seasons.

It’s impossible to know where things stand on that last front, owing to Leonard’s inscrutability and a decision that’s still six weeks away. But the Raptors never have gotten this far, so there is an opportunity here to be savored, with more potentially to come.

“It would be a very, very long summer thinking about what could have been or what you could have done,” guard Fred VanVleet said, framing things a bit negatively after raining 7-of-9 3-pointers on Milwaukee in the 105-99 Game 5 victory. “So we've just got to go out there and have no regrets. … One win away from the Finals sounds pretty good to me.”

Sounds a little easier, maybe, than it actually will be. The Raptors are at home for Game 6 and the crowd at Scotiabank crowd, already dialed high, will be able to let it rip without any fear -- immediate fear, anyway -- of failure.

But Milwaukee will be desperate. Giannis Antetokounmpo has pledged that his team will not “fold.” And the Bucks have zero interest in a knock-knock year, believing all season that they were good enough to reach and win the championship.

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They wouldn’t be human if they weren’t shaken by the three consecutive defeats Toronto has dealt them. The Raptors have managed to surround and partially stifle Antetokounmpo, while still firing out enough to bother Milwaukee’s 3-point shooters into repeated misfires.

The Bucks’ defense has been probed and poked like a cut-rate steak. They resorted again to some uncharacteristic switching in Game 5 but had most of their success inside the arc. Late in the pivotal loss, they got beat for five offensive rebounds, when grabbing two or three might have swung the outcome.

“It's win or lose,” coach Mike Budenholzer said Friday in a conference call with reporters. “When you win, there are things that [still] are concerning and unsettling that you need to work on and improve. I think there's just enough possessions where there's a couple of rebounds that stand out.

“Can we do a little bit better job in some of our activity in certain situations. Offensively, I think at times can our spacing be better and our ball movement be better? But I would say it's like a lot of games. We didn't get it done.”