Cleveland had an impressive last win against Chicago on Nov 30 however I believe the numbers below speak for themselves.
Cleveland last seven games first half average is 43 which is far off from the proposed O/U 50. I just dont see Over 50 and even with Denver in a back to back situation to allow that many points.
Denver last seven games allowed a first half average of 51 points however that was against much better and high scoring teams such as Dallas/Minneapolis and OKC etc.