Not necessarily and maybe this fight will end with the results of sharing points.
Winning against Manchester City in Manchester United's match did give a signal that Manchester United would win easily over Bournemouth. Moreover, the match will occur at Old Trafford. What if we predict betting approaching is Over 2.5. But first look at how many odds are available if you choose to win Manchester United or other betting options.
If indeed the chance of winning Manchester United to win is bigger, of course betting on Manchester United is better.
There is no need to judge the strength of Manchester United by one win at City, especially since City are going through a crisis right now. And Bournemouth are a very good team with a strong attack, so I think that in this match they will be able to score a goal and maybe even try to take points from Manchester United. Amorim has not yet changed the team so much that they can hope that they will start winning, it is still the same team, with its shortcomings in defense, and Bournemouth will take advantage of this.