Teenager Harry Robinson is ready to "expect the unexpected" from one of Wales's greatest players when he makes his Test debut on Saturday.
While Cardiff Blues prospect Robinson arrives on the international scene, 35-year-old Shane Williams will bow out after an immense career highlighted by him scoring a Wales record 58 tries. Williams wears the Barbarians' famous black and white hoops this weekend.
"I am glad I got to play against him for the Blues against the Ospreys earlier this season, but I think playing against him on the international stage I will be a bit petrified!" Robinson said. "I kind of know what to expect from Shane - you expect the unexpected. It's going to be a great test for me."
He added: "I try to almost play like Shane, stepping away from tackles and such, so he has been a big inspiration to the way I play.
"He is an incredible player, and he is finishing his career off on such a high note, but I am going to try to spoil the party!
"I don't know if it is written in the stars that he's meant to score a try against Wales, but I will be doing everything I can to try to stop him."