Ashton & Foden: Return for Saints

After last week's heavy defeat to Exeter, Ross Jones is handed his debut at full-back in place of Barry Davies, and Tom Prydie returns to the right wing with Eli Walker moving to the left flank in place of Kristian Phillips.

Up front Aaron Jarvis comes into the front row in place of Jo Rees, and Ian Evans replaces Richard Kelly in the second row.

Chris Ashton and Ben Foden return to the Saints line-up for the first time since the World Cup, replacing Greig Tonks and Jamie Elliott who started in last week's 36-6 hammering of Saracens.

James Downey replaces Tom May in midfield and Lee Dickson returns at No 9.

Up front Saints coach Jim Mallinder has named most of his big guns, with the likes of Courtney Lawes, Dylan Hartley, Paul Doran Jones, Soane Tonga'uiha all starting.

Ospreys: R Jones, Prydie, John, Parker, Walker, Morgan, Habberfield, Griffiths, Baldwin, Jarvis, Smith, I Evans, King, Lewis, Allen Reps: M Davies, Rees, D Jones, Kelly, O'Toole, Tom Grabham, Price, Davies

Northampton: Foden, Ashton, Armstrong, Downey, Artemyev, Lamb, Dickson, Tonga'uiha, Hartley, Doran-Jones, Lawes, Sorenson, Clark, Wood, Wilson Reps: Haywood, Waller, Mercey, Manoa, Dowson, Roberts, Myler, Clarke