Marseille midfielder Samir Nasri will arrive in London tomorrow to sign for Arsenal, according to reports from France.
The 20-year-old has established himself as one of the hottest prospects in Europe over the past few seasons and has been heavily linked with the Gunners in recent weeks.
The Algerian-descended playmaker only recently signed a new contract designed to keep him at Stade Velodrome until 2012, but it has since emerged the deal includes a release clause set at around $24 million.
Nasri is expected to replace the unsettled Aleksandr Hleb, who has received strong interest from Inter Milan and has recently been linked with Barcelona.
Gunner boss Arsène Wenger is likely to install Nasri on either flank, continuing his tradition of converting natural playmakers into wide midfielders, as he has done with the likes of Hleb, Tomas Rosicky and Robert Pirès.
Nasri is expected to arrive in London early Thursday morning, where he will meet with Arsenal officials to agree to personal terms before undergoing a medical at Shenley.
He will then be taken on a tour of the Emirates Stadium, and have his picture taken for the club's official Web site.