PLAYOFFS

Threatening a playoff upset, Chicago Bulls have Boston Celtics reeling

Jeff Zillgitt
USA TODAY Sports
Chicago Bulls forward Jimmy Butler (21) goes to the basket past Boston Celtics guard Marcus Smart (36) and center Kelly Olynyk (41) during the third quarter in game one of the first round of the 2017 NBA Playoffs at TD Garden.

The signs foretelling that the eighth-seeded Chicago Bulls would take a 2-0 series lead against the top-seeded Boston Celtics were not billboard size.

But small signs existed that the Bulls could give the Celtics a series, such as Chicago’s improved play following the All-Star break. In the final seven weeks of the season – almost a third of the regular season and not an insignificant sample size – the Bulls had the third-best defense in the NBA.

That coincided with impressive individual performances from forwards Jimmy Butler, Nikola Mirotic and Bobby Portis and guard Rajon Rondo.

And when the Bulls needed victories in the final 2 1/2 weeks of the season, they beat playoff-bound Milwaukee, Cleveland and Atlanta in consecutive games and won their final two when a loss would’ve knocked them out of the playoffs.

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They are, as Celtics coach Brad Stevens noted, playing their best basketball of the season at the start of the playoffs. Bulls coach Fred Hoiberg acknowledged the same on Friday in an interview with USA TODAY Sports.

“We found a way at maybe the most important part of the season to play our best basketball,” Hoiberg said. “Hopefully, we can continue with that.”

Chicago is two victories from pulling off the rare eight-over-one upset. Game 3 is Friday (7 p.m. ET, ESPN).

Since the playoffs expanded to 16 teams in 1984, the No. 1 seed is 61-5 against the No. 8 seed.  The eighth seed has won three of those series in the previous 10 playoffs: Philadelphia over Chicago in 2012, Memphis over San Antonio in 2011 and Golden State over Dallas in 2007.

The Bulls 2-0 lead is the first time the eighth seed has won the first two games of a series against the first seed since 1993.

“I can’t sit there and sulk today,” Celtics coach Brad Stevens said. “I can’t sit here and complain, worry or be down. The biggest thing we have to do is be forward-looking and prepare for Friday.”

The Celtics are also dealing with a tragedy. All-Star guard Isaiah Thomas’ sister, Chyna, died in a car accident Saturday. It’s impossible to measure that life-changing experience on the team.

“This is really hard,” Stevens said. “It’s super hard on Isaiah. During the games and during walk-throughs and the film, he’s trying his very best to focus. In a guy’s sanctuary, like the gym is for Isaiah, he is able to alleviate the pain for those couple of hours. There’s no question there are moments during that time that are hard on him, but the other 21 hours are really tough.

“We all feel for him. We are here to support him in any which way we can.”

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Butler, one of the league’s best two-way players, has been the star, averaging 26 points, 8.5 rebounds and 5.5. assists in the series. Rondo has directed an Academy Award production of the offense with 13 points and 10 assists a game.

Mirotic and Portis – who had diminished roles during portions of the regular season – have delivered, too, along with veteran guard Dwyane Wade who is shooting 66.7% on three-pointers in the series.

Chicago has also focused on missed shots and outrebounded the Celtics 96-74 and outscored them 37-27 on second-chance points.

The coaching staff, which landed on a rotation it could trust, also has the team prepared for the series, especially on defense where the Bulls are limiting the Celtics’ options with timely switches.

Chicago Bulls guard Rajon Rondo (9) goes under Boston Celtics guard Marcus Smart (36) during the second quarter in game one of the first round of the 2017 NBA Playoffs at TD Garden.

Don’t discount Chicago’s playoff experience, either. Wade has three titles, Rondo one. Butler has played in 34 playoff games.

Yes, the Bulls have played well.

And no, the Celtics have not. That’s a function of both what the Bulls have done and what the Celtics haven’t, and the idea that as 1-8 matchups go, this one wasn’t as lopsided on paper as previous ones.

Boston finished with the lowest number of victories (53) for a one seed since the 2006-07 Detroit Pistons won 53 games, and the Bulls-Celtics season series was 2-2.

While 12 games separated the teams in the standings, just 2.2 points separated them in point-differential (points scored vs. points allowed) during the regular season. Compare that with the 12.1 point-differential advantage between Golden State and Portland in the West.

Amid the tragedy, Stevens also must get the Celtics ready for Game 3. He knows they need to focus on rebounding, playing better defense and reducing transition mistakes.

Feeling underappreciated most of the season, the Celtics played with a “chip” on their shoulders, and Stevens wants his players to rediscover that mentality.

“That has to happen,” Stevens said. “That’s the charge for our team.”

Follow USA TODAY Sports' Jeff Zillgitt on Twitter @JeffZillgitt.