Granit Xhaka was replaced by Fabio Vieira inside 16 minutes of Arsenal's clash at Wolverhampton Wanderers. The change came moments after requiring treatment after clutching onto his stomach.
The Swiss midfielder seemed to enlighten club physio Simon Murphy of stomach concerns after only three minutes. Xhaka went down unchallenged before continuing in the West Midlands, but he signalled to the referee of his discomfort by holding his stomach.
He was replaced by Vieira not long later and headed straight down the tunnel back in the visitors changing room. It remains unclear whether Xhaka has picked up an injury or whether it is just illness.