Anyone else feel nervous about our defence going in to next weekend?

I was thinking back to the games we've played against Prem opposition in the last couple of years, Leicester, Arsenal, Liverpool and we had a very similar defence to what we have still now. Those games followed a similar pattern - we played really well going forward, scored or dominated the game until defensive frailty or error led to us going behind and losing. Not having specialist full-backs caused us issues in those games too.

Whilst i think we'll score goals and have good possession, my worry is we might struggle against the quality of opposition forwards in the division - players like Cooper, Dallas Allioski, Berardi and Ayling have done us proud in a team dominating oppositions - with some inability to defend pace and slip ups leading to break away goals and sometimes defeats. But if you think about what Cooper would cost in the market for eg - what would he go for? He's a really solid EFL defender, but in the centre of defence against Kane, Mane, Salah, Jesus, Aguero, Greenwood, Rashford, Vardy etc - you need to be very mobile and not get caught flat-footed, and he's been both over time, even against Champ forwards, allowing that he was mostly better last year.

We had insurance with Ben White, who often cleared up problems due to the class way he reads the game - hopefully Koch can do the same job or even better. But you clear up a mistake against Salah and Mane is there to pounce. There does seems to be a move to bring in a second CB signing, but i assume it'll be as back up for Cooper, rather than to replace the captain in the team.

What do other people think? We're playing Liverpool next Saturday! Still pinching myself we got there!!