CHRIS SUTTON: City must not repeat their first-leg blunders vs Real

You can buy Defending For Dummies in paperback online, but we have to hope Pep Guardiola and Carlo Ancelotti didn't add a copy to their baskets this week.

The first-leg clash between Manchester City and Real Madrid was thrilling, in part because of the defensive naivety on show.

The neutrals among us want to see more of the same tonight - two awesome attacking sides going head-to-head.

That isn't what Guardiola needs, mind. He wants City to be safer, less chaotic and more comfortable. He doesn't want a classic, he wants a routine win. For that to happen, City cannot be as generous as they were last week.

We could dissect all three of the goals they conceded and find faults. For Real's first, Oleksandr Zinchenko was ever so slightly late getting goalside and not close enough to stop Karim Benzema wrapping his foot around the ball.

For Real's second, Vinicius Junior had Fernandinho on toast. The 36-year-old Brazilian was sold a dummy as Vinicius got behind him, before charging forward to score.

Aymeric Laporte didn't cover himself in glory, either. Preoccupied with Benzema, he failed to come across to close down Vinicius. For Real's third, Laporte leapt with his arm in the air, handling the ball and giving the Spaniards a route back from the spot.

Guardiola will have hated seeing those three goals go in. He will want his defenders to make sounder decisions this evening. They have to be alert and not give any gifts.

It sounds strange to say City will have been disappointed with scoring four goals against a team like Real Madrid, but Guardiola will know they could have bagged seven.

Riyad Mahrez hit the side netting when he should have squared to Kevin De Bruyne or Phil Foden. That's five.

Foden dragged a shot wide instead