Michu struck twice in the 5-0 triumph.
"It's not a surprise to me and to us, the whole team, because we knew what Michu was about," he said. "He's come here to score goals and he's done that.
"He's had a great pre-season and the first game of the season coming to Queens Park Rangers.
"We all know that history hasn't been very good to us coming to this place.
"We have changed that and put on a performance obviously."