There's an odds boost from duelbits, if you bet over 2.5 goals on Barcelona vs Manchester United the odds was from @1.70 become @2.50. I think the possibility of 3 goals in this match is quite small because Barcelona doesn't score a lot goals even though they're win streak while Manchester City did score many goals but they're not always win. I think draw no bet option is more worthy if you want to bet Manchester United, since the odds is @3.35.



Source: https://duelbits.com/promotions/barcelona-man-utd-odds-boost