The Gunners’ surprise loss at Norwich last Saturday was compounded by Wednesday’s comprehensive 2-0 defeat by Schalke at The Emirates.
QPR, meanwhile, are still searching for their first Premier League win of the season ahead of their visit to Arsenal on Saturday.
And Granero is hopeful Mark Hughes’ men can cause the Gunners problems but remains full of respect for Arsène Wenger’s side.
“Arsenal are a great team with very high-class, quality players,” Granero told the London Evening Standard. “They are one of the best teams in the League.
“They wouldn’t have expected to lose to Norwich last weekend, so they will want to respond. Arsenal won’t want to lose two League games in a row.
“However we want the victory as well. We want the first three points of the season, so we’ll work hard and, hopefully, cause them problems.”
MORE: Man United latest news
MORE: Arsenal latest news
MORE: Chelsea latest news
MORE: Liverpool latest news