Young had swelling in his left knee that began to bother him after the Lakers' overtime victory over Boston on Sunday night.
Sacre tried to practice Monday, but Coach Byron Scott said the center felt a sharp pain in his left foot and had to stop.
The Lakers don't play until Wednesday at Utah, giving Young and Sacre another day to rest. Still, the Lakers said each will be listed as questionable against the Jazz.
Scott said that trainer Gary Vitti "didn't seem too overly concerned about" the injuries.
Wesley Johnson comes back strong
Rarely does Wesley Johnson show much emotion, so it was difficult to decipher how the Lakers' reserve small forward felt about not playing against Brooklyn on Friday night.
It turns out the low-key Johnson wasn't happy with Scott's decision.
"I wanted to play so it did bother me the whole time," Johnson said. "I felt like when we played Brooklyn, I felt like I could contribute some, really to just help us win. … But I think it did affect me just not playing."
When Johnson got his chance to play again, Sunday against Boston, he had one of his best games of the season.
Johnson scored a season-high 22 points, missing only two of his 11 shots, and made two of his three three-point shots. He had five rebounds, two assists and played 33 minutes, including all of the fourth quarter and all five minutes in overtime.
"I definitely wanted to show Byron, but I definitely just wanted to play," Johnson said. "I just wanted to go out there and be a part of the team."
Johnson, considered a player with plenty of talent and athleticism, has been inconsistent all season.
Scott smiled and joked that maybe he has found a way to motivate Johnson.
"Maybe I'll have to sit him down against Utah and then maybe he'll come back the next game and play well," Scott said.
After the Jazz, the Lakers play host to Milwaukee on Friday night.
Johnson knows what's at stake.
He's in his fifth season in the NBA and is in the final year of his contract.
"I can control what I can control," Johnson said. "I just go out there and just play. At the end of the season, then we talk about it. But right now, I just control how I play and trying to be consistent."