Chasing 182 for victory, Pakistan achieved their target with one ball to spare in Dubai after Rizwan hit 71 and the left-handed Nawaz, who was promoted to number four, made 42.
Roy had a series of low scores for England throughout the summer and endured a miserable time in The Hundred, averaging 8.5 over six innings for Oval Invincibles and making three ducks.
Following a couple of days off due to cramping they experienced during Pakistan's Asia Cup opener against India on Sunday, Naseem Shah and Haris Rauf returned to the field.