Bristal Bears take on Northampton Saints and will be looking for back-to-back wins against the Saints.
Lam has made 8 changes to the side that got the win over the Warriors over the weekend.
Piers O’Conor and Alapati Leiua come into the back three, while Andy Uren is also back in the backline. Siale Piutau lead the teams for this home clash.
Woolmore and Thacker will go down in the front-row while Attwood and Joyce will pack behind them in the scrum.
Earl will return to the starting lineup which means Vui switches to the blindside.
The Saints have gone with youth for this clash. Francis and Dingwall will be in the midfield with Naiyaravora and Olowofela on the wings.
Freeman will complete the back three at fullback for this match.
Tom James will get his first start for the Saints with Grayson next to him at ten.
In the front-row we have Hobbs-Awoyemi, Ehren Painter and Mikey Haywood.
The game is life on SuperSport at 20:40
Bristol Bears: 15 Charles Piutau, 14 Piers O’Conor, 13 Semi Radradra, 12 Siale Piutau (c), 11 Alapati Leiua, 10 Callum Sheedy, 9 Andy Uren, 8 Nathan Hughes, 7 Ben Earl, 6 Chris Vui, 5 Joe Joyce, 4 Dave Attwood, 3 Kyle Sinckler, 2 Harry Thacker, 1 Jake Woolmore
Replacements: 16 Will Capon, 17 Yann Thomas, 18 Peter McCabe, 19 Steven Luatua, 20 Dan Thomas, 21 Chris Cook, 22 Max Malins, 23 Luke Morahan
Northampton Saints: 15 Tommy Freeman, 14 Ryan Olowofela, 13 Fraser Dingwall, 12 Piers Francis, 11 Taqele Naiyaravoro, 10 James Grayson, 9 Tom James, 8 Shaun Adendorff, 7 Lewis Ludlam (c), 6 Jamie Gibson, 5 Nick Isiekwe, 4 Alex Moon, 3 Ehren Painter, 2 Mikey Haywood, 1 Danny Hobbs-Awoyemi
Replacements: 16 Reece Marshall, 17 Nick Auterac, 18 Karl Garside, 19 Lewis Bean, 20 Tui Uru, 21 Henry Taylor, 22 Reuben Bird-Tulloch, 23 Josh Gillespie