Inter Milan boss Roberto Mancini was left frustrated by defeat to Juventus.
Mancini felt the 2-1 loss was self-inflicted.
"We played truly well in the first half and should've gone 2-0 or 3-0 up. Instead, in my view, we failed to make the most of that pressure," Mancio told Sky Sport Italia.
"After the break we conceded on a ball we got wrong. I thought we played better than Juve, but that's not enough in a game like this, as you need good luck too.
"Yuto Nagatomo created a lot down the left when he came on and we did have the chances to score more goals."