Nottingham Forest overtook Manchester City in the Premier League after a late victory over Aston Villa with the help of Emiliano Martínez.
Forest fell behind just after the hour when John Duran headed in a John McGinn cross for Villa.
They were denied the first goal moments earlier when Martinez He made an excellent save on the goal line.
However, the Argentine goalkeeper had a moment to forget when he failed to hold out a late header from Nikola Milenkovic to make it 1-1.
It proved even more costly as Forest won all three points at the City Ground thanks to Anthony Elanga's low finish in added time.
They have risen to fourth place in the Premier League table and one point ahead of City, who play Manchester United on Sunday.
MORE ABOUT THE PREMIER LEAGUE
Forest, who beat United 3-2 at Old Trafford last weekend, have won three of their last four league games.
The victory is their eighth overall of the season and means they are just two points behind Arsenal.
Forest have only scored 21 goals and conceded 19, but that has not prevented them from entering the top four.
It's a testament to the work of Santo, who is in his first full season as boss since replacing Steve Cooper last December.
City will surpass them with at least a draw against United due to their superior goal difference.
However, thanks to Saturday night's result, Forest will not finish the weekend lower than fifth in the Premier League.
Villa, on the other hand, are two points off the top five after losing their fifth game of the season.
Victories over Brentford, Southampton and RB Leipzig saw them recover from an eight-game winless streak in all competitions.
However, Unai Emery and co. They have been defeated once again by failing to maintain their advantage away from home.
They could drop to eighth place on Monday night if Brighton beat Crystal Palace and Bournemouth beat West Ham at home.