Surprise Yankees trade could quietly wreck Astros' deadline fallback plan

St. Louis Cardinals v Colorado Rockies | Dustin Bradford/GettyImagesThe Houston Astros are in pretty desperate need of a left-handed bat at the trade deadline and everyone knows it. Astros general manager Dana Brown has made his intentions clear especially in the wake of Isaac Paredes getting hurt and with Yordan Alvarez out for the foreseeable future. One option that had been circulated as a strong possibility for Houston was third baseman Ryan McMahon.

McMahon wasn't really on experts' radars as an option for the Astros until Paredes got hurt which opened up the trade market a bit for them. While McMahon was never a perfect fit, he is a lefty bat with some (expensive) team control who is a…