Unbeaten at last year’s World Cup on the way to the gold medal.

On Friday, LeBron James will carry the U.S. flag.

The Celtics’ transition from a team that has gone from just outside the top tier of the Eastern Conference to one that's four wins way from the franchise’s 18th NBA championship began the moment Ime Udoka took the microphone at his introductory news conference.

The Celtics will be without center Robert Williams III will be out for Game 3 of their Eastern Conference finals matchup with the Heat due to soreness and swelling in his left knee.

Al Horford and Marcus Smart are coming back.

Things have been working out just fine so far in this postseason for Jimmy Butler and the top-seeded Miami Heat.

Jimmy Butler scored 41 points, and the Miami Heat turned things around with a huge third quarter on the way to beating the shorthanded Boston Celtics 118-107 in Game 1 of the Eastern Conference finals on Tuesday night.

Kyrie Irving scored 22 points while playing with Kevin Durant and James Harden for the first time in three months, leading the Brooklyn Nets to a 105-91 victory over the Chicago Bulls.

Jimmy Butler scored 33 points and Bam Adebayo added 23 for Miami.

The Boston Celtics blew most of a 27-point lead in the fourth quarter before holding on for a 121-113 victory over the Los Angeles Lakers.

Los Angeles Lakers' Anthony Davis (3) shoots between Boston Celtics' Jaylen Brown (7) and Jayson Tatum during the first half of an NBA basketball game Saturday, Jan. 30, 2021, in Boston. (AP Photo/Michael Dwyer)BOSTON – Anthony Davis had 27 points and 14 rebounds in his return to the lineup and the Los Angeles Lakers hung on to beat the Boston Celtics 96-95 on Saturday night when Daniel Theis missed a follow shot at the buzzer. Montrezl Harrell added 16 points for the Lakers, who lost in Detroit on Thursday when Davis rested a bruised right quadriceps. Walker missed the first 12 games of the season recovering from a procedure on his left knee and Tatum missed multiple games earlier this month with COVID-19. But there weren’t many like him before.” — Celtics coach Brad Stevens on LeBron James’ level of play in his 18th season.

Brooklyn Nets' Kyrie Irving (11) loses control of the ball against Boston Celtics' Marcus Smart (36) and Jayson Tatum (0) during the first half of an NBA basketball game, Friday, Dec. 25, 2020, in Boston. (AP Photo/Michael Dwyer)BOSTON – Kyrie Irving scored 37 points with eight assists in his return to Boston and Kevin Durant added 29 for Brooklyn on Friday to lead the Nets to a 123-95 victory over the Celtics. Jarrett Allen added 11 rebounds for the Nets, who remained perfect so far this season and sent Boston to its first loss. Jaylen Brown scored 27 with eight rebounds for the Celtics and Jayson Tatum had 20 points and eight boards. ... Celtics coach Brad Stevens was called for a technical foul arguing about a foul call against Daniel Theis in the second quarter.

Boston Celtics' Kemba Walker (8) reacts to a play against the Miami Heat during the second half of an NBA conference final playoff basketball game Friday, Sept. 25, 2020, in Lake Buena Vista, Fla. (AP Photo/Mark J. Terrill)LAKE BUENA VISTA, Fla. – There have been two undeniable truths about the Miami Heat this season. The Boston Celtics have scouting and analytics teams that undoubtedly know these trends. HEAT ON 3’SFor whatever reason, 31.1% is the magic number for Heat 3-pointers this season. BIG FINISHThe Celtics scored 103 points in the final three quarters of Game 5.

Tatum had 31 points and 10 rebounds, Jaylen Brown added 28 points and the Celtics shook off a slow first half to top the Miami Heat 121-108 in Game 5 of the Eastern Conference finals and stave off elimination. “Our deal was to come out and play, come out and compete, give it our best shot and I thought we played pretty well in the second half," Stevens said. Kemba Walker scored 15 points, Marcus Smart had a 12-point, eight-rebound, eight-assist night and Gordon Hayward scored 10 for the Celtics. “Boston played great in that second half," Heat coach Erik Spoelstra said. The Heat scored the first basket of the third quarter.

Tatum scored 29 points, Jaylen Brown had 21 and the Celtics topped the Toronto Raptors 92-87 on Friday night in Game 7 of the East semifinal series. The Raptors were bidding to become the seventh franchise in NBA history to win four consecutive Game 7's. Boston pushed the lead to nine, Toronto scored the next eight, eventually took the lead before the Celtics claimed it back. Raptors: Toronto was eliminated 456 days after winning the preceding season’s title, obviously the longest such run for a team that didn’t win consecutive championships. 2 seed in the East will make the conference finals since the NBA went to the 16-team playoff format in 1984; this one will feature No.

Fred VanVleet scored 21 points for the Raptors, who needed the win to extend their season, and Anunoby had 13 points and 13 rebounds. And tempers flared when it was over, everyone getting a few extra words in before Game 7 on Friday. Celtics: Brown took 18 shots in the first half, the most by a Celtics player in the first 24 minutes of a game since Antoine Walker took 18 on Nov. 29, 2002 also against Toronto. GAME 7 HISTORYThe Celtics will be in a Game 7 for the 33rd time; theyre 23-9 all-time but have lost four of their last seven ultimate games. Game 7 will be considered a Toronto home game.

Jaylen Brown scored 27 points and the Celtics never trailed, rolling past the Toronto Raptors 111-89 in Game 5 of their Eastern Conference semifinal series on Monday night. Boston now leads the series 3-2 and can earn a trip to the East finals on Wednesday. Toronto outscored Boston 28-25 in the third and it already didn't matter; the Celtics' lead was 87-63 going into the fourth. The Celtics scored more points in the second quarter (37) than they allowed in the first half (35). The Raptors went 1-0 last season in win-or-else games, that being the Game 7 triumph over Philadelphia in the East semifinals.

Two days after winning Game 3 on OG Anunobys 3-pointer as time expired, the Raptors didnt need any big shots. Jayson Tatum had 24 points and 10 rebounds for the Celtics. 7-UPWhen Lowry and Brown fouled each other, it caused some headaches for the public address announcer, who mixed up his No. When Brown fouled Lowry in the first quarter, he announced the foul was on Lowry, saying my bad after a moment of confusion. Lowry hacked Brown in the second and it was announced as a foul on the Celtics player.

(AP Photo/Mark J. Terrill)LAKE BUENA VISTA, Fla. Facing the absolute brink, the Toronto Raptors suddenly have life. OG Anunoby caught a crosscourt inbounds pass from Kyle Lowry and hit a 3-pointer with no time remaining, and the Raptors beat the Boston Celtics 104-103 in Game 3 of the Eastern Conference semifinal series Thursday night. The Celtics took a two-point lead when Kemba Walker found Daniel Theis for a dunk with a half-second left. Theis score left Toronto needing a miracle. When Siakam took a seat for the rest of the half, Toronto trailed 38-37.

Toronto has lost four games by more than 15 points this season three of them against Boston. The Celtics won by 22 on Aug. 7, 18 on Sunday and 16 on Christmas Day. Tatum hit a baseline jumper as time expired, and the lead was 88-73 going into the final 12 minutes. Raptors: Toronto trailed 39-23 after one quarter, the sixth-worst point differential in a span of 547 quarters including playoffs played by the Raptors going back to Jan. 16, 2019. The Raptors and Celtics knelt for that moment and the playings of The Star-Spangled Banner and O Canada that immediately followed.

The injury occurred in the fourth quarter of the Celtics' 109-101 victory Monday night when he went up for a rebound and rolled his ankle as he landed on teammate Daniel Theis' foot. Hayward played 34 minutes and scored 12 points on 5-for-13 shooting with four rebounds before the injury, which the team described as a Grade 3 sprain, the most severe type. The timeline for recovery means Hayward will miss the rest of the first round at a minimum and possibly some of the second if the Celtics advance. With Hayward out, it could mean a shift to a three-guard lineup and more minutes for Marcus Smart, who has been filling the role of Boston's sixth man. The Celtics went 14-6 without Hayward this season.

A replay overturned what would have been the NBA's MVP sixth foul with 1:28 left and he made the most of his second chance, helping the Milwaukee Bucks beat the Boston Celtics 119-112 on Friday night. Antetokounmpo had 36 points, 15 rebounds and seven assists in the Bucks first game in the restart. I felt like he was moving on the last play but either way if it was a charge, if it was not a charge, Im happy that we got the win and Ill learn from the play, Antetokounmpo said. Smart scored 23 points for the Celtics and Jaylen Brown had 22, but star forward Jayson Tatum had a nightmarish restart. Bucks: Play Houston on Sunday.