Joel Embiid of the Philadelphia 76ers looks on during a timeout in the first half of an NBA game against the Milwaukee Bucks at the Wells Fargo Center in Philadelphia, Pennsylvania, on Wednesday.

PHILADELPHIA — The 76ers have a new rallying cry for Joel Embiid this season: Trust the plan.

Embiid's absence from the Philadelphia 76ers' season opener against Milwaukee is simply part of the team's plan to keep the two-time NBA scoring champion on track for a healthy season — and, maybe, for the first time in his career, the playoffs.

Embiid was ruled out against Milwaukee as part of what the Sixers call "left knee management". Now, he seems poised to sit out road games in Toronto on Friday and Indiana on Sunday, a decision that opened up Embiid, and the team, to criticism.

Paul George was scratched from his debut with the Sixers. The five-time All-NBA selection left the Clippers and signed a four-year, $212 million contract as a free agent this summer. But, the 34-year-old sustained a bone bruise when he hyper-extended his left knee during preseason. George will be reevaluated later in the week.

Much like last season, when they posted a losing record without Embiid, the 76ers struggled, losing to the Bucks 124-109 on Wednesday night.

All-Star guard Tyrese Maxey shot 10 of 31 from the floor and scored 25 points, and the Sixers trailed by as many as 22. The Sixers essentially used a preseason lineup, with Maxey, Andre Drummond, Kelly Oubre Jr, KJ Martin and Eric Gordon.

"We played one game. I'm not about to sit here and say that just because Jo was out, we played bad," Maxey said. "Yes, we did not win the game, which is the goal. But, we've been without Jo all preseason, all training camp, for the most part. He's ramping up. Us winning, it can't be solely on Joel Embiid. It just can't."

The oft-injured Embiid has been blasted by former players, media and unhappy fans on social media for sitting out opening night — after not playing in the preseason due to a sore left knee.

The Sixers said Embiid was "responding well" to his individualized rehab plan, and was scheduled to scrimmage this week. He will be reevaluated this weekend.

Embiid was limited to 39 games last season, mostly because of surgery after tearing the meniscus in his left knee on Jan 30 against Golden State. He returned for the playoffs and was diagnosed with Bell's palsy during a first-round loss to the Knicks.

He won an Olympic gold medal this summer with Team USA.

Coach Nick Nurse said before the opener that Embiid did not suffer an additional injury to his left knee.

"The plan is why he's not playing," Nurse said. "The plan is, we don't feel like he's quite ready, strong enough, light enough ... that they've determined that he's not quite ready to go."

Nurse said Embiid is just one voice among those who decide when the 2023 NBA MVP will play this season — a plan that likely eliminates action in both ends of back-to-back games.

"Our medical is first and foremost," Nurse said. "Joel is there, the front office, myself — everybody is weighing in. We're just trying to do something a little different, and get him there (to the playoffs) this time."

The NBA is interested in Embiid's situation, too.

The league took steps ahead of last season to ensure that its star players appear in more games, particularly nationally televised matchups like Wednesday's opener and the in-season tournament.

The NBA's plan calls for increasing fines for violating its policy that could reach a million dollars.

Hall of Famers and TNT broadcasters Charles Barkley and Shaquille O'Neal were among the critics taking aim at Embiid for his reduced schedule.

"You cannot say, as a leader of that team, 'I'm not going to play certain games'," Barkley said. "That's not the way to start the season."

The 30-year-old Embiid signed a $193 million contract before training camp. The 76ers have failed to advance beyond the second round of the playoffs since 2001 — in large part because Embiid has failed to stay healthy.

The 76ers finished 31-8 last season with Embiid, and 16-27 without him.

Embiid revealed ahead of training camp that he dropped about 14 kilograms to stay in better condition for the season's grind. That includes not rushing back from any further issues with the knee.

Embiid was the No 3 pick in the 2014 draft, but missed his first two full seasons through injury. Since his first full season in 2016, Embiid has played in 433 of a possible 801 regular-season games, and only 59 of 67 possible playoff games.