Francisco Liriano was one of the most integral pieces in the Pittsburgh Pirates three consecutive postseason berths from 2013-2015. However, after signing a new contract at what looked to be a team friendly deal at the time following the 2014 season, the lefty would fall off a cliff in 2016. This led to the Pirates making what I consider one of the worst trades they made throughout the 2010s.
When the Bucs first signed the left hander, he was a down-on-his-luck former All-Star who posted a 5.23 ERA, 4.43 FIP, and 1.48 WHIP in the two prior seasons combined.