Ireland internationals Ian Keatley and Robin Copeland will make their Munster returns in Wales when they had their hearts set on The Aviva Stadium tomorrow.
Coach Anthony Foley makes seven changes with JJ Hanrahan fast becoming the Ian Madigan of Munster, lining out at full-back.
Hooker Eusebio Guinazo startes for the first time, while new signing Pat Howard should debut off the bench.
The Dragons: G Jones, T Morgan, R Wardle, A Smith, H Amos; D Jones, R Rees; B Harris, E Dee, D Way, C Hill, R Landman (capt), J Thomas, N Cudd, L Evans.
Munster: JJ Hanrahan; A Conway, A Smith, D Hurley, R O'Mahony; I Keatley, C Sheridan; J Ryan, E Guinazu, S Archer, D O'Callaghan (capt), B Holland, P Butler, S Dougall, R Copeland.
Connacht v Zebre, The Sportsground, Tonight (KO 7.35) Live TG4
"We're here to win," said Connacht new prop Tom McCartney, on behalf of his fellow Kiwis.
For the first time this season, coach Pat Lam has Mils Muliaina (r), Bundee Aki and Tom McCartney at his disposal.
Muliaina will make his debut from the start, Aki his first appearance at home and McCartney will get his first game time from the bench.
Connacht: M Muliaina; D Poolman, B Aki, D McSharry, M Healy; M Nikora, I Porter; D Buckley, J Harris-Wright, R Loughney, M Kearney, Q Roux, J Muldoon (capt), W Faloon, G Naoupu.
Zebre: H Daniller; D Odiete, G Bisegni, M Pratichetti, M Visentin; E Padovani, B Leonard; A de Marchi, O Fabiani, L Redolfini, A Ferreira, V Bernabo, M Bergamasco (capt), F Cristiano, A van Schalkwyk.
Ulster v The Ospreys, Kingspan Stadium, Tonight (KO 7.35) Live BBC 2
Coach Neil Doak is able to call on Ireland's Stuart Olding, Darren Cave and Craig Gilroy.
Ulster look solid on paper as they bid to bridge the four-point gap from third to The Ospreys in first.
Ulster: S Olding; L Ludik, D Cave, S McCloskey C Gilroy, P Jackson, P Marshall; C Black, R Herring, W Herbst, L Stevenson, F vd Merwe, C Ross, S Reidy, R Wilson (capt).
The Ospreys: D Evans; T Grabham, A Bishop, A Beck, A Natoga; S Davies, M Roberts; D Jones, S Parry, D Arhip, L Peters (capt), R Bernardo, J King, S Lewis, D Baker.
The Dragons v Munster, Rodney Parade, Tonight (KO 7.30)