Who cares what guys who've trained with him say? Gegard does want to succeed in the UFC, turned up sharp and in great shape, had obviously prepared well. The opponent he was given was top 5 and on an absolute warpath, a dangerous and unique opponent for everyone... then a week before the fight he gets pulled, replaced by a completely different fighter.
Gegard has been hugely impressive here. Perseveres, gets the job done, no complaining, waits until after the fight to tell everyone he needs knee surgery.
Also now the fight is over, I'm pleased to say that Latifi did much better than many 'bums' would. Took everything Mousasi could be bothered to give him for three rounds, landed a couple SOLID punches, and managed to not gas too bad - he went for broke in the third with that takedown. Don't be surprised to see him get a little contract off Dana.