Obafemi Martins admits he was desperately disappointed with his scattergun performance for Newcastle in their Carling Cup defeat at Arsenal this week.

The Nigeria striker told the Evening Chronicle: "I feel very unlucky. With my first chance, the keeper had to pull off a good save. You have to try to forget it when you miss, though.

"I had a second chance to score, but for me, the chance after Arsenal had scored upset me most.

"I heard the fans celebrating and I really thought the ball was going in."

Martins - who seems certain to lead the attack at Manchester City on Saturday - says he must recover quickly from his painful night in the capital.

And he knows the only answer is goals, with the player already on three strikes and two assists this term.

He added: "As a striker I have to accept it wasn't my day, it was hard luck.

"After the game I thought 'Oh my god' but I have to recover.

"It's over now, so I have to focus on the next game against Manchester City."