The Yankees traded Ferguson to the Astros on Tuesday, Jack Curry of YES Network reports.
Ferguson recorded a hold against the Red Sox on Friday by striking out all four batters he faced.
Ferguson earned a hold against the White Sox on Friday, striking out one batter in two-thirds of an inning.
Ferguson earned a save against the Diamondbacks on Wednesday, allowing one hit and one walk while striking out two batters over two-thirds of an inning.
The Yankees acquired Ferguson from the Dodgers on Monday in exchange for left-hander Matt Gage and right-hander Christian Zazueta, Jon Heyman of the New York Post reports.
The Dodgers and Ferguson avoided arbitration by agreeing to a one-year, $2.4 million contract Thursday, Fabian Ardaya of The Athletic reports.
Ferguson will serve as the opening pitcher in the first game of Tuesday's doubleheader at Colorado, Eric Stephen of SBNation.com reports.
Ferguson will serve as an opener for the Dodgers in Friday's game versus the Giants, Fabian Ardaya of The Athletic reports.
Ferguson will serve as the opening pitcher Tuesday against the Tigers, Fabian Ardaya of The Athletic reports.
Ferguson will serve as an opener for the Dodgers on Sunday in Boston, Jack Harris of the Los Angeles Times reports.