"?Borussia Dortmund have welcomed three of their new signings to the club after their participation at the Euro 2016 Championship.
"?The Bundesliga club's official site announced that Mario Gotze, Andre Schurrle and Raphael Guerreiro had arrived for their first day of pre-season training in their new surroundings.
The trio were joined by returning Dortmund stars Lukasz Piszczek, Joo-Ho Park and Julian Weigl.
.@MarioGoetze, @Andre_Schuerrle and @RaphGuerreiro begin BVB careers https://t.co/GDuKgsJfuT pic.twitter.com/ngyVuRDxig
Dortmund also announced the squad numbers that Gotze, Schurrle and Guerreiro would wear on twitter ahead of next term.
Gib mich Deine Nummer! ? Jetzt im Shop: https://t.co/Yk7ijPTbig pic.twitter.com/QJ4qpgSpb1
The six players then headed to Bochum University to undergo diagnostic tests ahead of their first training session of the 2016/17 campaign.
Play-maker Gotze returned to the first professional club of his career after completing a £22m move from Bayern Munich.
The 24-year-old played 116 times across four seasons at the Westfalonstadion before sealing a £31m move to Munich in the summer of 2013.
Gotze featured on 114 occasions for the reigning Bundesliga champions during a three-year spell.
A hamstring injury restricted Gotze to just 21 appearances last term and, upon his return, he struggled to hold on a regular starting place in then-manager Pep Guardiola's side.
Gotze was linked with a reunion with former Dortmund boss Jurgen Klopp at Liverpool before rejoining his old side on July 21.
Meanwhile, Schurrle joins after an 18-month spell at fellow German outfit Wolfsburg.
The 25-year-old forward, who has also played for Mainz, Bayer Leverkusen and Chelsea throughout his career, agreed to a £25.5m switch on July 22.
Portugal international Guerreiro, who helped his national side win their first ever international title by securing the Euro 2016 trophy, joined Dortmund in a £10m move from Ligue 1 club Lorient.
The left-back played over 100 matches for the French side after making a 2013 move from SM Caen.
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