Middlesbrough boss Aitor Karanka was left frustrated after their 2-2 draw at Leicester City.

Islam Slimani's injury-time penalty rescued a point for the champions.

Karanka said: "I was sure one player pushed Calum Chambers. If I had one doubt, which I didn't have, the players told me Morgan recognised to them he had pushed Calum.

"I've been here for three years and I always say football is about a team. If we want to win or lose we're working as a team, and the referees work as a team.

"There's four of them on the pitch and for me it's difficult to understand how four members of the same team decided for that penalty.

"For me, it's a clear foul. The fourth official has the same view as me, the linesman has the same view, so for that reason it's frustrating as football is about teams."