Arsenal boss Arsene Wenger admits Mesut Ozil's arrival has given everyone connected to the club a big lift.
Ozil was outstanding in the first-half of Arsenal's win at Sunderland.
"He was like a guy who was invited to play for us because he was sick," said the manager. "But for a guy who was invited he did well.
"There was a demand from everybody to have a player for reasons that we didn't challenge for the title because we lost big players without being capable of brining the same stature of players in.
"So that was a huge lift for everybody who loves our Club."
