It is clear that the red card was the reason why Tottenham was defeated by Chelsea. Before Tottenham got the card, they could lead with 1 goal. Sadly, the card change everything, it ruined the tactics made by the coach. Chelsea dominated the match because the have more players in the field. They could optimize the advantage and scored 4 goals. It was a very painful lose for Tottenham.
Against Aston Villa, it won't be easy. Aston Villa is a strong team, they want to get full points to try overtaking Tottenham for the UCL zone. Tottenham is also not in a good condition because there are some players injured. I think a draw will be a fair result for both teams. However, we don't know how the match will be, but I still expect Tottenham tp get 1 point at least.
Well that's not an excuse because Chelsea really made the game hot for them, to the point that they felt the pressure and began to defend very aggressively and were so unfortunate to concede 2 red card booking, well Chelsea really made use of the advantage the match to humiliate Tottenham by scoring about 4 goals and since them the Tottenham team has not really been in a good shape cause several of their players got injured in that match coupled with the booking of two of their key players.
Definitely Tottenham coach Ange Postecoglou would be feeling the heat from the EPL currently and I'm pretty sure he's fully aware that he's not going to find it easy when they meet Aston Villa after the international break, so I believe he should be cookimg up something to help his team get better.