The Lilywhites came from a goal down to win against Brighton kind courtesy of Dele Ali and Harry Kane’s second half strike.
Eriksen, who was instrumental in Spurs’ winning goal, will be out of contract at the end of the season and has refused to agree a new deal as per media reports.
The former Ajax man is likely to move away from the Tottenham Hotspur Stadium in January, having been linked with top European clubs like Real Madrid, Inter Milan and Manchester United.
Mourinho refused to discuss the future of the Denmark international but insists he knows the final decision of Eriksen.
“About his future, I know his future. I think I know his future because his communication with me is completely open and honest and we trust each other,” the Portuguese told Sky Sports.
"The only thing I can tell you is that I know his future, but I am not the one to speak about his future, it has to be him to speak about his future when he makes the decision to speak about it, not me.”
"My feeling is that he wants to help us, which is why when I am in trouble and need a player with his qualities, I play him.”
"Today he was important. Harry had a yellow card, we needed freshness, we needed vision and fast passing, and he was there for us."
