United handed the table-topping Gunners their only league defeat of the season in September and Ten Hag is sure his team has what it takes to beat the league leaders once more today (22.01.23) even though he is convinced that the opposition have improved since the corresponding fixture.
The coach said: "They deserve to be in the position they're in now.
"They have a really good structure in the way they play and have a winning mentality and attitude in the team. That is why they are top of the league.
"When we played them before you could already see that the coaching style was already working. You could see really good structures in the team and I think they have even improved during the first half of the season. There is a really good spirit in the team."
Ten Hag added: "They are on a great run and it's up to us to beat that run and we will do everything to do that.
"We know what to do. We have to be really good and we need a really good performance. If we do, then we had a good chance of getting a good result."
United brought in striker Wout Weghorst on loan earlier this month and Ten Hag suggested that the club could do some more transfer business in January.
He said: "I think Manchester United always has to look for solutions and you always have to look for better.
"This is what we will do. We will do our research and if there are opportunities we have to go for it."