Norwich City top-scorer Borja Sainz is facing a Football Association investigation, head coach Johannes Hoff Thorup has confirmed.
It follows an incident during City's 2-1 defeat at Sunderland on 21 December, but no charge has yet been placed against the Spaniard.
"We haven't seen what it's about, or any footage of it, so that's what we're waiting for - and the reason why he's still playing," Thorup told BBC Radio Norfolk following Sunday's 1-1 draw with QPR.
Asked whether it involved an allegation of spitting at an opposing player, Thorup added: "I will be careful saying too much.