Lewis's current winstreak is actually pretty mediocre, before that he got ragdolled by Cormier with an injured back who just got off the couch to save a card, and was TKOed by shot JDS.
His only actual good win in his streak is Blaydes and he was getting pieced up before Blaydes got caught. Oleynik is 600 years old and has no chin, couldn't do any real damage against LHW Latifi and was taken down at will. Blagoy was a gift decision that one could justifiably argue he lost.
Patient Francis by 1st or 2nd round KO.