The team announced Friday that James has a groin contusion. He will travel to Portland with the team.
"LeBron basically did the no-contact portion or just the warm-up portion of some of the offensive fundamentals that we were doing," Vogel said Friday. " ... Like all injuries, we're going to be cautious about it. Certainly it's in the same area, but it's not the same injury [as last year]."
Last Christmas, James sustained a torn left groin against the Golden State Warriors, which marked the first major injury of his NBA career. He was limited to a career-low 55 games and the Lakers went on to miss the postseason.
The injury currently impacting James is on the right side of his groin. In 30 regular-season games this season, James has averaged 25.7 points, 10.6 assists and 7.6 rebounds per game.
The Trail Blazers (14-18) will host the Lakers (24-7) at 10 p.m. EST on Saturday in Portland.