United claimed just two wins in pre-season before today, conceding 13 goals in seven games, and Giggs was pleased with the solidity on display against the Latics.
"It was a very professional performance," he said.
"We were a bit disappointed pre-season, letting a few goals in, so the main objective was to get a clean sheet. We wanted to do that as a team. Work hard, get behind the ball and I think we did that."
He added: "We just know we've got good players in the team. It's always hard when you're champions, you've got to reproduce the form that you showed last year and I hope we do that."
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