Chris Hughton was disappointed Manchester City's Kyle Walker was not sent off in the first half of Saturday's FA Cup semi-final as Brighton and Hove Albion were beaten 1-0 at Wembley.
Gabriel Jesus scored after just four minutes, but the tie might have turned in Brighton's favour had Walker been shown a red card before the interval.
The England full-back was involved in a heated confrontation with Alireza Jahanbakhsh and appeared to move his head towards the Brighton forward. VAR looked at the incident but did not recommend that referee Anthony Taylor upgraded a yellow card to red.