Ola Toivonen scored his first Sunderland goal but it was no consolation for the Swede after seeing his side outclassed by Manchester City.
Sunderland were 4-0 down at half-time, with Manuel Pellegrini’s side taking full advantage of another defensive horror show.
Summer signing Toivonen headed in an 83rd-minute consolation from close range after a perfect cross from debutant DeAndre Yedlin.
But it was all far too little, too late for Dick Advocaat’s side as they crashed out of the Capital One Cup.
Toivonen said: “I didn’t really think about it (being my first) when I scored.
“It is always nice to think back that I have scored for the club.
“But City are good, really good.
“You make one mistake and they take it off you and hurt you.
“With (Sergio) Aguero and (Raheem) Sterling up front, they can hurt you.”
“We wanted to produce a good performance.
“We did quite well in spells but they are too good.
“If you give them a little finger, they take the whole hand and they were 4-0 up at half-time, that was a tough half.”
Toivonen had a first-half chance when the score was 1-0 up, but within seconds City had counter-attacked to score a second through Kevin De Bruyne.
“If I’d scored my chance it would have been 1-1 instead they went up and scored to make it 2-0, we were then really spread out,” he added.
On a night of few positives, Spurs loanee Yedlin impressed with his pace and work rate down the right flank. Toivonen added: “Two times he produced good balls for me, he had a good game.”
The 29-year-old Swedish international played behind Fabio Borini in a 4-2-3-1 formation.
Going forward, Advocaat’s side have looked dangerous, but it is their defensive failings that is causing them constant problems.
Toivonen added: “I am enjoying my role but we need to find our position in defence more so we can counter a little bit faster.
“We can’t complain how we are playing offensively. But as a team we need to be better defensively, as a group.”