Celtic are back in action on Sunday when they face bottom club Hibernian on the back of their latest European collapse. The Bhoys led Celta Vigo at home in the Europa League on Thursday night but conceded two goals within three second-half minutes to make it three defeats from three in Europe.
Attention now turns back to the league, and Celtic, who are top, will be heavy favourites against a Hibs side that sits bottom with just two wins, and they come into this one on the back of a defeat to Falkirk.
Here we put together the starting I O'Neill should employ for the game.
GK - Viljami SInisalo
Sam Johnstone came in during the week and there weren't any glaring issues, but he is yet to prove he is a better option than Sinisalo.
LB - Landon Emenalo
We need to see what Emenalo has in a game that doesn't have huge pressure like this one. Kieran Tierney has now played three games in a week, so give him some rest and let's see what the youngster has.
CB - Liam Scales
Scales is likely to keep his place, given Cameron Carter-Vickers will be fresh back from injury and we don't yet know if Auston Trusty will return so soon following the death of his father.
CB - Dane Murray
Murray should also keep his place on the basis of the above.
RB - Jordan Lotomba
O'Neill would also be wise to give Lotomba a start, with Hibs unlikely to hurt Celtic, and once Alistair Johnston is cleared to start, Lotomba is likely to have two players ehead of him,
CDM - Alex Oxlade-Chamberlain
Celtic keep seeing the same issues from Callum McGregor in the European games. He is largely solid but he is being dragged into the defence and leaving too much space on the edge of the box. O'Neill can't ignore that issue because of McGregor's stature. Oxlade-Chamberlain needs a chance to show he can offer more.
CDM - Mika Baur
Baur is part of that problem, oo, but he gets some grace given it's not a natural part of his game. He remains key on the ball.
CAM - Benjamin Nygren
Nygren has been more involved in the last couple of games and should get the start here.
LW - Jota
Callum Osmand hobbled off during the week. Jota is unlikely to have more than 45-60 minutes in him at this point, but he should start and have Sebastian Tounekti come on rather than the other way around.
RW - Haissem Hassan
A strong performance during the week from the right winger, who should keep his place.
CF - Camilo Durán
Durán remains the best striker option until Kasper Hogh can prove his form has improved.
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