Tudor was informed of a bereavement in his immediate family after fulltime, which meant assistant Bruno Saltor stepped in to reflect on a potentially pivotal defeat.
After a rare positive week for Spurs with a spirited point at Anfield followed by a morale-boosting 3-2 win over Atletico Madrid to ease the pressure on Croatian Tudor, the interim boss was firmly back under the microscope on Sunday.
"It's a personal family issue and obviously it's a difficult moment for him," Saltor said on Tudor.
"First half, the first 44 minutes I thought we're good, really good, creating chances, getting into the box.
"In the second half, probably we were unable to deal with the weight of the game."
Tottenham started on the front foot in the clash between two struggling outfits who have ditched Ange Postecoglou as manager in the past year.
But after Spurs hit the crossbar twice during a largely dominant first half, only for Igor Jesus's 45th-minute header to give Vitor Pereira's team a precious halftime lead.
It was a sucker-punch and further blows followed, with Forest captain Morgan Gibbs-White able to finish off a slick move after 62 minutes before substitute Taiwo Awoniyi sent Spurs supporters heading for the exits when he tapped in with three minutes left.Â
Boos followed at fulltime following another abject home loss, with Tottenham winless in 13 Premier League matches and down to 17th, only a point above West Ham United, who lost 2-0 at Aston Villa.
"Obviously, a lot of players, they're leaving now for the internationals and as soon as they get back, get back on the train, come and try to get everyone up to speed and prepare for the next game," Saltor added.
Forest backed up Thursday's Europa League progression with a crucial victory in their fight for survival, leapfrogging Spurs by two points into 16th.
After losing 2-1 at home to local rivals Sunderland in the Tyne-Wear derby, Newcastle vowed to track down those responsible for discriminatory abuse aimed at Black Cats defender Lutsharel Geertruida.
Referee Anthony Taylor briefly paused the game and spoke to both managers and club officials during the second half at St James' Park after an incident had been reported to him.
Newcastle later said in a statement: "We will work with the authorities to fully investigate and will ensure any individuals are identified and held accountable."
Dutchman Brian Brobbey's last-gasp winner fired Sunderland to a famous derby double.
Trailing to Anthony Gordon's early opener, the visitors levelled through Chemsdine Talbi 12 minutes after the restart before Brobbey's sixth goal of the season snatched victory in the 90th.
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