[kiddo]

When UTG raise and u defend in BB its not really a HU-match like when SB raises and u are sitting in BB. UTG normally got a great hand so u will normally be well paid when u hit your flush. Against SB raise a small pair will be enough more often. That said, against UTGraise its important to not be dominated. I prefer T9o instead of K5s. But against a stealraise I would think K5s works just as well, if not better (I will win unimproved more often).

I would defend against UTG raise with Axs but not below A7o if he got normal standards (say PFR 16%). I would defend with 54s but probably not 76o (well...).