A few weeks ago, I examined the five best trades from the 2018 trade deadline. Unfortunately, not every trade can be a winner. A great example from 2017 is the Yankees’ trade for Sonny Gray. The Yankees traded three highly-ranked prospects for former all-star Sonny Gray. Since coming to New York, Gray’s performance has been nothing short of disappointing, accumulating an ERA of 4.51 and a FIP of 4.40. Disastrous trades, like this one, happen every season and they can greatly damage teams in the hunt for a championship. Here are the five worst trades of 2018 based on the performance of the traded player and the perceived potential of the players given up.