John Souttar will miss Rangers' Scottish Premiership match with St Mirren tomorrow.
Philippe Clement revealed that the Scotland international had to be withdrawn from last weekend's win at Tynecastle due to an injury.
While it's not serious, it's expected to keep the defender out until at least the end of next week.
In brighter news for the Ibrox club, Danilo is available to face St Mirren, while Oscar Cortes has returned to training.
"John Souttar injured himself during the Hearts game," the Belgian revealed. "That's why I had to take him off.
"It's not a long-term injury but he will be out of the game.
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"On the positive side, Danilo, as I told you guys, he was training last week and has been this week also, so he will be in the selection because he's back on track.
"Oscar Cortes re-joined the group over the last few days. He still has a way to go after being out for a long time.
"So, we have John Souttar, Leon Balogun, Dujon Sterling and Connor Barron out.
"None of them are longer term. From those four, I expect a few of them to be back in training at the end of next week."