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The third-year head coach missed Thursday's loss against the Chicago Bulls in order to be with his former Butler player Andrew Smith in Indiana who is battling an aggressive form of non-Hodgkin's lymphoma.
With nearly a half of the regular season in the books now though, uneven play, especially from the team's second unit, has been a recurring problem for Brad Stevens.
Adam Kaufman takes a look at the David Lee situation in Boston.
David Lee has been removed from the Celtics' regular rotation in recent weeks, and the forward says he disagrees with Coach Brad Stevens' decision.
Kelly Olynyk has started just three games during the 2015-16 Celtics season, but that number is poised to increase in the coming weeks.
Marcus Smart is still easing his way back from a knee injury, but always seems to make an impact when he's on the floor.
While the Celtics already have a major logjam in their frontcourt, Jordan Mickey's recent strong play in the D-League could lead to him getting a shot in Boston.
Boston lost to Brooklyn 100-97 on Saturday.
Brook Lopez scored a season-high 30 points and grabbed 13 rebounds, leading the Brooklyn Nets to a 100-97 victory over the Boston Celtics on Saturday.
Brooklyn Nets guard Jarrett Jack had to be helped off the court after injuring his right knee in Saturday's game against the Boston Celtics.
"Celtics @ 7" host Adam Kaufman looked back at Kobe Bryant's final career trip to the Garden, the crowd's response to his farewell performance, and how the Lakers legend should be remembered locally.
Celtics players talk about Kobe Bryant's career as the Lakers star gets set to make his final visit to Boston.
Isaiah Thomas had a pair of key baskets and finished with 21 points, Evan Turner scored 19 and the Boston Celtics won their fourth straight with a 100-91 victory over the New York Knicks on Sunday night.
The Boston Celtics defeated the Detroit Pistons on Saturday night.
Kobe Bryant will be playing his last game in Boston on Wednesday.
Adam Kaufman explores the possibilities of Boston keeping or trading Kelly Olynyk.
According to head coach Brad Stevens, guard Marcus Smart has been cleared to play.
Brian Robb says Boston Celtics guard Marcus Smart may be returning to the team sometime around the start of the new year.
Kelly Olynyk delivered a highlight jam Wednesday night while leading the way for the Celtics in their win over the Charlotte Hornets.
There is some encouraging news for the Boston Celtics on the Marcus Smart front.
Kevin Garnett didn't play in what could be his final trip to Boston, but he certainly felt the love throughout the TD Garden.
The Celtics coach may alter the lineup after the team has dropped three consecutive games.
Saturday's "Celtics @ 7" on 98.5 The Sports Hub looked back at a rough 1-3 week for the Green, including a three-game skid taking them into the weekend.
Veteran NBA referee Bill Kennedy has told Yahoo Sports he is gay after Sacramento Kings guard Rajon Rondo directed a gay slur at him during a game.
After a smack to the face by J.R. Smith ended his season last April, Celtics forward Jae Crowder is hoping to get an apology from Smith when the Cavaliers come to Boston on Tuesday.
Brandon Lowe hit a three-run home run and rookie Rafael Flores Jr. homered for the third time in two days to lead the Pittsburgh Pirates to an 8-4 victory over the Boston Red Sox on Friday night.
A graffiti mural in Boston is gone less than 24 hours after it went up, but neighbors in Charlestown are still talking about it.
There is no testimony happening Friday in Lindsay Clancy's high-profile Massachusetts murder trial, but it was an important week inside Plymouth Superior Court.
Lawrence Mayor Brian DePeña is facing federal wire fraud and money laundering charges after he allegedly improperly used COVID relief money.
A Boston city councilor suggested calling up the Massachusetts National Guard after the most recent act of violence in the city.
Lawrence Mayor Brian DePeña is facing federal wire fraud and money laundering charges after he allegedly improperly used COVID relief money.
There is no testimony happening Friday in Lindsay Clancy's high-profile Massachusetts murder trial, but it was an important week inside Plymouth Superior Court.
A Boston city councilor suggested calling up the Massachusetts National Guard after the most recent act of violence in the city.
Lindsay Clancy's trial for the murders of her three children resumed Thursday with testimony from State Police investigators.
A graffiti mural in Boston is gone less than 24 hours after it went up, but neighbors in Charlestown are still talking about it.
Sydney Towle, known for her social media content about living with a rare form of cancer called cholangiocarcinoma, died Wednesday in Bethesda, Maryland.
Massachusetts has seen more than 100 cyclospora cases this summer, with some linked to lettuce.
Several people in New Hampshire have cyclospora infections linked to Taylor Farms lettuce.
Taylor Farms said none of its branded salads or kits contain the iceberg lettuce associated with the outbreak.
A lettuce supplier to fast-food giant Taco Bell has been linked to a nationwide cyclosporiasis outbreak that has sickened thousands of people, the CDC said.
Apartment rental scams are rising in the Boston area, according to the FBI. They said there have been nearly 500 victims.
An I-Team investigation into a brazen case of alleged land theft in Concord, Massachusetts has led to criminal charges nearly two years later.
With the Brigham and Women's Hospital nurses strike looming, some parents of newborns in the NICU are sounding the alarm.
A Malden, Massachusetts woman said National Grid took more than $28,000 out of her bank account for a gas bill that she didn't owe.
A Massachusetts family thought their Vrbo stay would be protected after they had to cancel their trip to Hawaii due to severe weather. Now they're out $12,000.
Barney Frank, a Democrat who represented Massachusetts in Congress for 32 years, has died. He was 86 years old.
Both the Trump and Healey administrations are using government websites to blame each other for the shutdown.
Which party stands to take more of the blame from voters for the government shutdown? Here's what a new poll says.
A UNH Survey Center/Granite State poll shows John Sununu crushing Scott Brown by 23 points among likely primary voters in New Hampshire.
Seth Moulton said he's running against Sen. Ed Markey because "our party leaders are clinging to that old playbook."
Panera Bread is moving its headquarters from St. Louis to Weston, Massachusetts.
Breaking Grounds Cafe, a Peabody, Massachusetts coffee shop known for employing people with disabilities, is closing.
The buildings that house the Somerville Theatre and the Capitol Theatre in Arlington, Massachusetts are for sale.
Golden Temple and Party Favors in Brookline are closing after a combined 100 years in business.
There are no more Hooters restaurants left in Massachusetts.
Beauport, the Sleeper-McCann House has become one of New England's most imaginative seaside estates.
Blending clean modern lines with the warmth of a classic seaside retreat, this stunning North Shore coastal home was designed to feel both elevated and inviting.
Set across thirty acres of rolling lawns, wooded trails, and contemporary outdoor art, deCordova Sculpture Park and Museum invites visitors to experience art in the landscape.
James Beard Award-winning chef and restaurateur Karen Akunowicz has become known for her bold, Italian-inspired cooking and unmistakable culinary voice.
Just a short drive from Newport, the Norman Bird Sanctuary spans 300 acres of fields, forests, and coastal trails with sweeping views and more than six miles of hiking paths.
Brandon Lowe hit a three-run home run and rookie Rafael Flores Jr. homered for the third time in two days to lead the Pittsburgh Pirates to an 8-4 victory over the Boston Red Sox on Friday night.
The New England Patriots played to a 13-13 tie with the Indianapolis Colts Thursday night in both teams' preseason opener.
The Boston Red Sox ended their five-game skid with a 7-0 victory over the Toronto Blue Jays on Thursday.
The Toronto Blue Jays beat Boston 6-4 on Wednesday night, handing the Red Sox their fifth consecutive loss.
Ceddanne Rafaela and Wilyer Abreu hit solo homers, but the Red Sox lost their fourth straight.
Natick says it is installing a new floating boardwalk across Pickerel Pond.
Rising ocean temperatures are drawing more hammerhead sharks to New England waters, researchers say.
Some of the oldest military veterans in Massachusetts were honored with special flights on Friday in a World War II-era aircraft.
After marrying Taylor Swift and Travis Kelce, Adam Sandler went to Nantucket in search of a basketball court.
An injured hiker had to be carried off a New Hampshire mountain on a stretcher, but that didn't stop her from getting engaged.