Brendan Rodgers has delivered an injury update on both Cameron Carter-Vickers and Reo Hatate.
The Hoops pair were both substituted off during today's 3-1 win against Aberdeen.
The former was withdrawn from proceedings at half-time and was replaced by Stephen Welsh.
The latter didn't start the game but was brought on for David Turnbull at the break.
The Japanese international didn't last the distance in though, as he was forced off with a knock midway through the second half. Odin Thiago Holm was his replacement.
Rodgers had this update at full-time. Asked how Carter-Vickers was, he told Sky Sports: "Hopefully okay. He felt his hamstring a little bit, so we just have to assess that and see what it is. We didn't want to put any more risk on him.
"Reo coming in was just a tactical one with second balls. There were a lot of direct balls in the first half and in midfield, we weren't getting around the second balls.
"He's quite tenacious in there, Reo. Then he felt a little issue in his calf so we'll see how that is in the next couple of days."
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He added: "It really is a squad game when you're at a club like Celtic and there are so many games. Every game is a big game.
"Welshy (Stephen Welsh) was excellent when he came in. He's trained so well and Odin as well, comes in and makes an impact. Yang too makes a difference for the third goal."
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