If the injury is legit well that sucks for him.
I think to make the situation better he should have made it public before the fight and not afterwards about his sternum injury.
I like Lombard as a fighter and his highlight reels are amazing to say the least. But that performance was more like he had a brain injury.
I'm not a fan of him outside of the octagon for some of his D-bag moves he's pulled. One for example he was training in a grappling session with a training partner (non-striking at that) and apparently his partner was getting the best of him. So he punched him.
I can't recall the training partners name off hand but the info was from this site.
I respect a fighter when they lose to just man up and say "My opponent was better than me today", or request a rematch. I don't think I'd want to watch that rematch though if you know what I mean.