This will be a very interesting game, and the Chief's squad will be debated long and hard I'm sure.
Messam could become the first Chief to play 100 games, if he is involved in the match. It sounds like he sure as heck wants to be, but the coaches may want to rest him (and give him his hundredth cap in Hamilton next week).
The Chiefs can't afford to slip up here, and the Kings are still a bit of an unknown. It's hard to take a whole lot out of last week's match - the Kings were superb on defence against the Sharks, but the SA derbies tend to end up as forward orientated contests. The Kings won against the Force, but that's not exactly a mean feat. All things said and done, the Chiefs will need to rest a couple of players, but won't want to weaken the team too much. Had Tameifuna been available he likely would've replaced Afeaki at tight head, but he has returned home on bereavement leave. Toby Smith will surely get a start at loose head, with either Kainga or Manu taking the bench spot.
Elliot will be at hooker, with Marshall on the bench. Potentially Retalick could be rested, with Fitzgerald given another start. I'm impartial to what happens here - Fitzgerald needs more game time with Clarke off at the end of the year. Retalick could still make a good impact (as much impact as a tight forward can make, anyway) off the bench.
In all likelihood, Messam will start. That means Cane and Latimer will probably contest the 7 jersey (I think Latimer may get the spot this week), and either Lee or Filipo will be given the other vacant spot with the loser riding the pine. Kerr-Barlow and Cruden should partner up in the halves. The rest of the backline should remain almost unchanged, though Horrell will be fitted in somewhere. Nanai-Williams could do with a rest, after a heavy work load in the centres, but Rennie may not want to tamper with the centres again so early.
Likely 22:
1 Smith*
2 Elliot
3 Afeaki
4 Clarke
5 Fitzgerald*
6 Messam
7 Latimer
8 Lee*
9 Kerr-Barlow
10 Cruden
11 Tikoirotuma
12 Ngatai
13 Horrell*
14 Masaga
15 Anscombe
16 Marshall
17 Kainga
18 Retalick
19 Filipo
20 Pulu
21 Nanai-Williams
22 Osborne
That would be four changes, which would be reasonable to me.