Real Madrid are close to winning the League Cup after beating Sevilla again on Sunday.
Sevilla won 2-0 thanks to goals from Ivan Rakitic and Eric Lamila to revive the La Liga title race.
However Referee Guillermo Cuadra Fernandez will have a significant impact on Eduardo Camavinga late in the first half without a second yellow card.
Camavinga was sent off for Rodrigo in extra time, with the Brazilian quick to take the lead and pull off with a brilliant start early in the second half.
Nacho Fernandez scored the only goal of the game in the eighth minute of extra time, with Carim Benzema scoring the winner in stoppage time.
Even if Barca win both of their games, Madrid will be nine points clear at the top of the table, with Atletico Madrid and Real Madrid likely to be the ones to upset.
Coach Ancelotti has acknowledged that Madrid are close to the end.
He told LaLiga TV: "No, it's not over yet, but it's really close.
"Everyone is waiting to lose to Real Madrid, but we are still on fire."
Despite being the drama of the competition, Ancelotti emphasized that less stress was needed than rest, but cut out the full-time structure.
"It seemed normal because I was so tired. I felt so bad," he said with a smile. "I need time to recover."
In recent months, Madrid have made it a habit to play again, especially in Paris Saint-Germain and Chelsea in the Champions League.
"Sunday is one of the last impressive examples and I would like to explain in detail the factors that led to those turns."
Vinicius Junior suffered a concussion in the second half after the ball hit his wrist and prevented him from retaliating.
It's ultimately a minor factor in the grand scheme, but Ancelotti was eager to express his regret over his decision.
"We thought so too," he replied harshly.
"As a supporter, I did not understand why Vinicius' goal was not allowed. It was not a handball.
"I know it's really difficult to assess in this situation, but I think that's a goal."