Mahle trade will battle with the Sam Dyson trade for worst trade values in how things worked out. Let's see, both pitchers get injured soon after joining team. We got 12 games, 11 innings and a 7.15 era from Dyson and 9 starts split over 2 years from Mahle. Factoring in we traded Steer and Encarnacion-Strand for Mahle I think Mahle wins as the worst trade.