"Brian O'Driscoll has been an icon of world rugby and is a gentleman off the pitch," Phillips told reporters.
"My early memories were of him scoring that try against Australia for the Lions [in 2001] and I eventually went on to play alongside him, which was a massive honour for me.
"He's scored some big tries in his career, and a couple against us as well. He's a world-class player. Everyone knows that, and I just hope he has one of those lesser games on the weekend!"
Wales are coached by Warren Gatland, who controversially omitted O'Driscoll from last summer's British and Irish Lions Test series finale against Australia.