The Celtics (2) needed an unlikely comeback to take down the Knicks (3) before star Jayson Tatum got injured late in the fourth quarter, as they trailed New York 111-104 before he went down.

By the time he had been subbed out, an OG Anunoby dunk had given the Knicks a 113-104 lead with 3:03 to play.

The brutal injury to one of the top players in the league had a massive and immediate impact on the betting odds in not only Knicks vs. Celtics (New York is now shorter than -500 to advance from this series), but the entire posteason landscape leaguewide.

Though details on Tatum’s injury will not be disclosed until the Celtics announce the results of his MRI later on Tuesday, it was clear based on the reaction from everyone in the Celtics’ locker room on Monday night that he has a long recovery ahead.

Below, we’ll detail how different the NBA playoff betting odds now look in Celtics-Knicks, the Eastern Conference and across the league after sportsbooks immediately gave Boston — which entered Monday night as the favorite to win the East despite its 2-1 deficit vs. the Knicks — the longest odds to win the East.

Knicks vs. Celtics Series Winner Odds

A 3-1 hole, with or without Tatum, would have been a massive one to climb out of for any team, even the reigning champs.

But with Tatum absent for the rest of the postseason, Boston is now 4-to-1 or longer to win this series at both DraftKings and FanDuel. The odds below are up-to-date as of 11:30 a.m. ET on Tuesday.

DKFDKnicks to advance-525-620Celtics to advance+400+460

The implied probability of +400 odds is 20 percent, while +460 odds carry an implied probability of 17.86 percent.

While oddsmakers are understandably skeptical of the Celtics’ chances of winning three in a row vs. the Knicks, it’s notable that Boston is currently listed as a 4.5-point favorite in Game 5 at home on Wednesday night. FD, DK and bet365 all list the C’s at -185 or shorter on the moneyline.

Eastern Conference Winner Odds: NY Favored

While oddsmakers have faith in Boston forcing at least a Game 6 in its current series, the futures odds in the East show that there is far more confidence in the Cavaliers — who currently trail the Pacers 3-1 — than the Celtics.

DKFDbet365Knicks+135+115+120Pacers+180+210+200Cavaliers+425+410+425Celtics+950+850+800

DK, FD and bet365 differ a bit on the odds on each of the four teams that are still alive, but clearly see this as a two-horse race between the Pacers and Knicks.

These odds tell us that Jalen Brunson and Co. will enter the Eastern Conference Finals vs. Indiana (assuming neither the Knicks nor the Pacers blow their 3-1 leads in their current series) as substantial betting favorites.

The Pacers will be a tempting underdog in that hypotheticaly (but likely) series after cruising past Milwaukee 4-1 in the first round and bullying the top-seeded but banged up Cavaliers through four games.

The Knicks, for what it’s worth, beat the Pacers in two of three regular-season matchups this year.

That should be taken with a hefty grain of salt, though, as those games took place in October, early November and early February, long before Indy hit its stride down the stretch of the regular season. The Pacers entered the playoffs with a 15-4 record in their final 19 regular-season games from March 11-April 13.

NBA Finals Odds: Thunder Odds-On Favorites

The Thunder have been the favorites to win the Larry O’Brien Trophy since well before the playoffs got underway, but their odds are even shorter now that the consensus top threat to them (Boston) is on the ropes.

The Knicks (+500) are now the second-favorites to win it all at FanDuel ahead of the Timberwolves (+600), while the Pacers, Cavaliers, Nuggets, Celtics and Warriors are all major longshots at around 10-to-1 or longer.

FDbet365BetMGMThunder-105-105+100Knicks+500+500+500Timberwolves+600+600+600Pacers+950+900+900Cavaliers+1000+1000+1000Nuggets+1600+1600+1600Celtics+2600+2200+3000Warriors+16000+15000+15000

Also worth noting is how aligned FD, bet365 and BetMGM are on the pecking order in the NBA Finals Winner market: the three sportsbooks give the Thunder, Knicks, Timberwolves, Pacers and Cavaliers nearly identical odds to win it all.

Right now, it’s hard to argue with the Thunder as the favorites, even though their second-round battle with Nikola Jokic and the Nuggets is tied at 2-2 and far from over.

For me, the best value plays right now for anyone looking to fade the Thunder are the Pacers, who could very well upset the Knicks (but probably would not pose a real threat to the Thunder) and the Timberwolves.

Anthony Edwards and the Wolves are just one win away from securing some rest ahead of the Western Conference Finals after taking down the Lakers in five, though their success against the Warriors sans Stephen Curry does come with a caveat.

Looking ahead, if it does end up being Thunder vs. Wolves in the Western Conference Finals, Minnesota could have a real chance at the upset, as it split four regular-season meetings with OKC.

The Timberwolves’ solid regular-season showing against the Thunder included a road win in the most recent OKC-MIN game on Feb. 24. The Wolves won that one 131-128 in overtime despite not only A) a rare cold night from Edwards (17 points on 5-for-15 FG shooting), but also B) the absence of second-leading scorer Julius Randle, as Jaden McDaniels and Naz Reid combined for 49 points.

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