"Ideally I don't want anyone to make a mistake but that is part of defending as well," Wenger said.
But they are defending as diligently as they had been attacking and United can't get close to the danger zone.
Garvey may as well have been the invisible man so ineffectual was his challenge and Irish's director of rugby, Brian Smith, was understating his case when he afterwards described his side's defending as shambolic.
Teams defending as badly as Liverpool rarely end up as champions.
"They are making wee mistakes but there are positives about the defending as well".
Although Spurs were not undeserving of the 5-1 scoreline, they owed their crushing win to poor Sunderland defending as much as a great attacking display.
Manager Ronnie Moore described some of his team's defending as "schoolboy" after seeing Rovers beaten for only the second time in the nine matches since his return to Prenton Park in March.
Liverpool manager Brendan Rodgers will be bemoaning his side's defending, as will opposite number Mark Hughes, but the Irishman will be thrilled by the reunion of Sturridge and Suarez in attack.
2112: Mehmet Topal shows he do canny defending as well as stunning strikes as he guides Matthew Etherington down a cul-de-sac before nudging the winger just slyly enough to ensure he fluffs his attempt to cross.
Pau was defending as well as he was scoring, and he was scoring creatively against really good defenses.
Liverpool are defending as a team splendidly.
