Arsenal have strengthened their defensive ranks by signing Laurent Koscielny from French side Lorient for an undisclosed fee.
The 24-year-old, who joins on a long-term deal, shot to prominence last term as he made 40 appearances for the unfashionable outfit, helping them to a commendable seventh-placed finish in Ligue 1.
Born in France, Koscielny, who has been handed the number six jersey, qualifies for Poland as a result of his family roots and Gunners manager Arsene Wenger is delighted to have him on board.
Speaking to the club's official website, Wenger said:"Koscielny is a central defender with great ability who performed extremely well last season for Lorient.
"We identified him as a very strong centre half, who has made big progress very quickly.
"He has shown he is mentally strong, he's a fighter and a very strong competitor. Koscielny is a great addition to our squad."
Meanwhile, Koscielny has expressed his desire to shine in the Champions League and Premier League after making his big switch.
"I'm very excited to be joining Arsenal. They are one of the biggest teams in Europe with many great players," he said.
"I'm really looking forward to playing in the English Premier League and the Champions League with my new club.
"Also, in Arsene Wenger, Arsenal has one of the best managers in the world and I can't wait to work with him and do my best for the Arsenal supporters."