He began his career in the youth ranks of Hamburger SV and English club Everton, where he made one substitute appearance in 2 1⁄2 years before leaving to Sampdoria in January 2012. He signed a five-year deal at Valencia in August 2014, and moved to Arsenal for a reported £35 million two years later.
Mustafi made his full international debut against Poland on 13 May 2014, and was part of the German teams that won the 2014 FIFA World Cup and the 2017 FIFA Confederations Cup, also competing at UEFA Euro 2016. Description provided by Wikipedia
Jürgen Locadia starts to prove his worth, Hart loses out to Heaton, Palace need reinforcements and Arsenal need a defence
Pursuit of 19th league title has been based on a formidable defence but now Jürgen Klopp’s forward line is hitting collective stride too
Roberto Firmino scored a hat-trick as Liverpool came from a goal behind to beat Arsenal 5-1 and go nine points clear at the top