The 28-year-old defender - making his first Premier League appearance since injuring his shoulder against Tottenham in July - had to be substituted in the 55th minute of the weekend's win after landing awkwardly.
However, he has trained with his national team this week and is in contention to play in Wednesday's friendly against Croatia.
Schär's Rossocrociati then take on Spain in Madrid on Saturday and Germany in Köln next Tuesday, both in the UEFA Nations League.