Raphaël Guerreiro
Guerreiro signs four-year deal with Bundesliga giants. Getty

Borussia Dortmund have completed the signing of reported Arsenal target Raphaël Guerreiro. Guerreiro, 22, has signed a four-year deal with the Bundesliga giants from French club Lorient. The left-back is currently with the Portugal squad at Euro 2016, starting and finishing the 1-1 draw with Iceland on Tuesday 14 June.

According to the Guardian, the Gunners were among the clubs watching Guerreiro throughout the 2015-16 season with Arsene Wenger frequently dispatching scouts to monitor his progress. Doubts over Kieran Gibbs' long-term future at the Emirates prompted speculation the Portuguese youngster could be his replacement, but Dortmund have instead made him their sixth signing of the summer.

"Raphael Guerreiro is a technically-skilled player who feels at home in several positions," sporting director Michael Zorc told the club's official website. "We are very happy that he has chosen Borussia Dortmund."

While Guerreiro was on Arsenal's watch list, recent reports would suggest the club have shifted their focus to Wolfsburg left-back Ricardo Rodriguez. German publication Kicker suggested the Premier League side will activate his €25m (£19m, $28m) release clause, with the German club conceding they will be unable to hold onto the player this summer.

Reports suggest Dortmund paid Lorient a fee of €12m (£9.5m) for Guerreiro. Thomas Tuchel's side have already signed Spanish duo Marc Batra and Mikel Merino from Barcelona and Osasuna respectively, with midfielder Sebastian Rode has joined from rivals Bayern Munich, having rejected a move to Tottenham Hotspur. Attacking talents Emre Mor and Ousmane Dembele have also been recruited in a summer where they have lost key players Mats Hummels and Ilkay Gundogan.

Dortmund have become accustomed to losing their best players but they are keen to avoid another mass exodus this summer, insisting there will be no other major departures following Hummels and Gundogan' exits.

Henrikh Mkhitaryan has been linked with both the Gunners and Manchester United with the 27-year-old's agent Mino Raiola insisting his client is desperate to move to Old Trafford. Dortmund however insist they have no plans to cash in on the attacking midfielder.