18 May, 15:44
It's down to the wire now for the five contenders who have been shortlisted for the ultimate individual accolade in northern hemisphere rugby, ERC European Player of the Year 2013.
Having suffered a shock defeat at Borders last weekend, Cheika is hoping home support will help his side recapture the form that saw them beat European champions Munster at Lansdowne Road a fortnight ago.
Cheika said: "We have doubts over Cameron Jowitt, Chris Whitaker, and Will Green.
"We still have a pretty good squad, but at some stage we have to draw a line in the sand and see if these guys will play.
"Will has had a problem with his back and his neck so we will have to wait and see how he pulls up after his day off on Thursday.
"If we were to pick right now, Chris would not be available for selection. But we have got an extra day with the game being on Saturday.
"If Will Green does not make it, we have Ronan McCormack or Harry Vermaas who can slot into tight-head prop.
"In any case we would be pretty confident with our scrum.
"We understand the challenges in front of us, we have seen Gloucester play and the word coming from the UK is that they are pretty confident about coming over here.
"Dean Ryan (Gloucester's coach) would take great pride in their pack and they play the game very hard up-front."
Cheika is hoping for a bumper crowd similar to the 27,252 who turned up to help
Leinster see off the Munstermen 27-20 a fortnight ago.
He said: "Having a home game first, I saw the boost that having a huge support gave us at the Munster game and hopefully we will have a similar crowd on Saturday.
"Every try will count, and because of that we have got to take advantage of playing at home in the first round."