Monaco striker Park Chu-Young is set to undergo a medical at Arsenal.
South Korea captain Park, 26, had been due to sign for Lille and underwent the first part of a medical, but he now appears destined for the Emirates Stadium after Arsene Wenger made his move.
Lille president Michel Seydoux told BBC Sport: "We haven't had a telephone call - nothing. From what we understand he could be at Arsenal."
He added: "Like Monaco, Lille are baffled. Everything had been agreed."
The Press Association reports that Arsenal have offered around £10 million for Park. The Gunners are, according to reports in France, also planning a €35 million offer for Lille starlet Eden Hazard and it remains to be seen whether this deal will have an affect on those negotiations.