"Pique came in at centre half and did a good job, and so did Simmo," Giggs told MUTV. "They got two assists really, so overall it was a really good performance from them both."
Brazilian midfielder Anderson was a first-half substitute at Old Trafford, and caught the eye with his superb passing, forming a promising partnership with Paul Scholes.
"In the second half Anderson was really involved in a lot of the play," admitted Giggs.
"He worked hard, showed some great touches, some great passes and he's still only young and finding his feet, but he put in a really good performance."