The Trail Blazers are heavily reliant on Damian Lillard. There are two major concerns about Lillard in this Game 3 series matchup. It's not just Lillard playing with a dislocated finger. It's how the Lakers defended him during their 111-88 victory this past Thursday. They boxed him at the top of the key, limiting his space to shoot. It threw off Lillard's long-range shooting. 
If Lillard is hampered - both physically and strategically - Portland is in trouble. I don't trust the rest of its players to step up. CJ McCollum is dealing with a broken bone in his back. He's 4-for-13 from 3-point range in the series. Carmelo Anthony has missed 17 of 21 shots from the floor in the series and Jusuf Nurkic is 8-of-21 from the field. 
On top of this, big man Zach Collins is out with an ankle injury. He's done for the playoffs.
The Trail Blazers lack the defense to contain Anthony Davis. The Lakers destroyed the Trail Blazers by 23 points in Game 2 with LeBron James contributing only 10 points. Davis tore the Trail Blazers to shreds with 31 points playing less than 30 minutes. Portland could put Wenyen Gabriel on Davis with Collins out. The problem is Gabriel contributes no offense. The Trail Blazers were minus 11 during Gabriel's 21 minutes on the court. 
I'm not expecting to see the Lakers squad of Game 1, the one that missed 32 of 37 shots from 3-point range and lost 100-93. The Lakers have huge matchup edges now and smell blood. 
The Trail Blazers are banged up, don't play defense and are carrying a heavy fatigue load. They had to gut their way through eight seeding games and then the play-in game in two weeks to reach the playoffs. Many times Lillard had to carry them with monster scoring performances. Portland's players have logged far more tough minutes than the Lakers. The Lakers are the fresher and superior team.