Ordinarily I would say rest 'key' players for this game but looking at the fixture list this would mean some players going 11 days without a game i.e. Dec 28th (Boxing Day) to Jan 9th.
So, whilst sticking by the principle that we should concentrate 100% on the league until it's mathematically impossible to reach the play-offs, I would put out a strong team for this game so that players retain match fitness.