How do you sports bettors deal with injuries mostly nba for me

Everytime I google Nba starting lineups, there is always so
many players as game time decisions. Tonight I wanted to bet the Lakers
over the Clippers, but both Lebron and Luka were listed as maybe's.

When does the final lineup have to be submitted. 1 hour before tip off, 1 minute
before tip off.

I think alot of the teams are playing games and listing so many of there players as maybes.
I don't feel its an honest system. Wish I had more accuracy with this.