Sanchez was called up for the recently-completed five-game Interleague swing, and in his big league debut started two games at DH, going 2-for-8 and impressing the staff with his progress at the plate.
"He showed disciplined pitch recognition," manager Clint Hurdle said of Sanchez, "and looked aggressive, but in control, at the plate. We told him to continue working hard to improve at both sides of the ball."
Harrison went 2-for-11 in his first three stints, mostly as a pinch-hitter, while also appearing at three positions -- shortstop, third base and left field.
In his most extensive Minor League action since 2010, Harrison was hitting .316 in 60 games, and comes up as particularly hot hitter. He was 17-for-45 in his last 10 games, including a six-RBI game on Monday and a four-hit game on Wednesday.
Hurdle indicated Harrison, a right-handed hitter, will play a bigger role next week, when the Phillies will be in town and are scheduled to start lefties Cole Hamels and Cliff Lee in two of the three games against the Pirates.