The midfielder, who will return to training in two weeks, will miss Wednesday's Champions League game against Arsenal. Scott McTominay experienced a heart rhythm disorder, something which is not considered serious but did require surgery. Key points and original sources are listed below.

• The midfielder, who will return to training in two weeks, will miss Wednesday's Champions League game against Arsenal.S1

• Scott McTominay experienced a heart rhythm disorder, something which is not considered serious but did require surgery.S2