A busy Christmas schedule sees Bath travel to Franklins Gardens in search of some early festive cheer, whilst the top two square off at the Stoop with Quins heroes of the battle of Toulouse hosting champions Saracens.
The 27-year-old is believed to have signed a two-and-half-year contract with the West Country outfit and is the first of Director of Rugby Ian McGeechan's post season signings.
"He has been such an important team man. He leads physically from the front and he's got a great attitude. When you think what he's done, what he's achieved it's fantastic."