The Cardiff Blues team to play the Ospreys on Saturday shows three changes, all among the forwards, from the side that beat the Dragons last week.
The newcomers are in all three rows of the pack. Martin Jones starts at tight-head prop, Deiniol Jones joins Robert Sidoli at lock, and Mark Lewis replaces Nathan Thomas at number 6.
In an unchanged back division, Lee Thomas continues at fly-half. Nick Robinson is still unavailable due to illness as is his brother Jamie (knee), Craig Quinnell (calf) and John Yapp (thigh).
Andrew Lewis has recovered from a jaw injury and is named among the replacements along with Ken Fourie and Heino Senekal.
Team: Rhys Williams; Jonny Vaughton, Tom Shanklin, Tristan Davies, Craig Morgan; Lee Thomas, Richard Smith; Gethin Jenkins, Gareth Williams, Martin Jones, Deiniol Jones, Robert Sidoli, Mark Lewis, Kort Schubert, Martyn Williams (captain)
Replacements: Ken Fourie, Andrew Lewis, Ben Evans, Heino Senekal, Nathan Thomas, Dean Dewdney, Nick Macleod
Referee: Donal Courtney (Ireland)