Getting their first defeat at home and receiving 2 red cards which will make these 2 players absent from the next match will clearly be detrimental for Tottenham, their self-confidence will decrease and the team's performance will also be different when these 2 players are absent.
This defeat was quite embarrassing because Tottenham lost to the Chelsea team, which in fact is a team that is in decline this season, maybe if 2 Tottenham players had not received red cards it would have made this game different, but this is really a bad night for Tottenham, I really hope they not down because of this.
I don't think that this incident will immediately affect Tottenham's performance in the next match even though there were two Tottenham players who had to be absent because of red cards against Chelsea. Because in the next match, Tottenham will not face a stronger team, so this will make it difficult for Tottenham to win again in that match. The defeat experienced by Tottenham at home was certainly very detrimental to them apart from being quite embarrassing for them in front of their own supporters, because currently Tottenham is no longer in the top position after Tottenham lost to Chelsea.