South Wales director of rugby Mark Rowley said: “It will be a tough game for us.
“But with the game being free entry for children, plus with Neath RFC season ticket holders able to come in for a reduced price, we hope to have a large crowd to give our lads the support that they need.”
However, Lions coach Steve McCormack could be boosted by the return of Lee Wingfield after a two-week lay-off with a back problem.
McCormack said: “Lee trained on Tuesday night and we’re hopeful he’ll be OK, but we’ll monitor him as the week goes on.”
The Lions coach added: “We showed a lot of character last week, and going away to South Wales is another tough challenge.