What happened: Napoli said the midfielder underwent cardiac ablation at Spire Manchester Hospital on Tuesday morning. The treatment followed last week's diagnosis of a mild, benign arrhythmia.
Why it matters: The absence spans both Serie A and Champions League play. The international break gives Napoli a fixture-free portion of the recovery window.
By the numbers: McTominay has missed one match during the spell, Napoli's 3-2 loss to Inter Milan.
What to watch: Napoli will monitor his return to first-team work during the break before determining match availability.