Pick 1: Herbert/Mahut ML (-150)
First match of this tourny for both teams. I consider Herbert/Mahut the favourites here due to the surface and h2h.
This is the worst surface for the colombians, they both have negative record on this: Cabal is 22-27 and Farah 24-30

On their h2h this was their results:
RG 2021 (clay) Herbert/Mahut 2-1
Barcelona 2021 (clay) Cabal/Farah 2-0
Masters 2019 (indoor) Herbert/Mahut 2-0
Masters 2018 (indoor) Herbert/Mahut 2-1
Paris 2017 (indoor) Herbert/Mahut 2-0
Olympics 2016 (hard) Cabal/Farah 2-0
Monte Carlo 2016 (clay) Herbert/Mahut 2-0
AO 2015 (hard) Herbert/Mahut 2-0

As we can see Herbert/Mahut dominates this h2h, on indoor they never lost to the colombians and only dropped 1 set on 3 matches
Their last match was on RG on clay (Cabal/Farah's best surface) and they still won