Just when it looked like Emre Can was getting his first legitimate opportunity for regular playing time at Juventus because of Sami Khedira’s injury absence,

Via the club’s website on Sunday, Juventus announced that Can is at risk of missing time due to possible thyroid surgery. The cause, as explained by Juventus’ incredibly thorough medical update on Can, is as follows:

Emre Can will undergo clinical tests and investigations for a thyroid nodule that could also require surgical treatment.

OK, that’s not thorough at all.

And because of it, you’re probably wondering what exactly a thyroid nodule is. (I know I was.) So, here’s the Mayo Clinic to help you out.

Thyroid nodules are solid or fluid-filled lumps that form within your thyroid, a small gland located at the base of your neck, just above your breastbone. The great majority of thyroid nodules aren’t serious and don’t cause symptoms. Thyroid cancer accounts for only a small percentage of thyroid nodules. You often won’t know you have a thyroid nodule until your doctor discovers it during a routine medical exam. Some thyroid nodules, however, may become large enough to be visible or make it difficult to swallow or breathe.

Can, who arrived on a free transfer from Liverpool this summer, had just been on international duty with Germany during the most recent international break. While he was called up for Saturday’s game against Genoa, his absence was likely looked upon as a day of rest before Juventus’ trip to England to face Manchester United in the Champions League on Tuesday night.

Now, it looks like Can being in the squad for the clash with United is not in the cards.