Here, Press Association Sport picks out five things you may not know about the 24-year-old
WEAH JERSEY
Rudiger's first football shirt was self-made and was designed to resemble the one worn by George Weah, the AC Milan and Liberia striker
Weah spent the second half of the 1999-2000 season on loan at Chelsea, scoring five goals in 15 appearances.
RONALDO ADMIRER
The first player Rudiger really idolised was Ronaldo, the Brazil striker
Rudiger says on his website: "He was the perfect striker and he had everything." He began his career as a forward, before later switching to defence.
STREET SOCCER
Rudiger began playing football on the streets of Berlin
He says the game allowed him to channel his talent and saw him focus on what he could achieve in life
He joined Borussia Dortmund's academy before coming to prominence with Stuttgart.
GUNNING FOR ARSENAL?
Rudiger has risked the wrath of Chelsea fans with a 2014 interview in which he said he has been following Arsenal since the days of Thierry Henry and Dennis Bergkamp.
SAY NO TO SENAD
Rudiger is sadly among the black professionals to have experienced racism during his time in Italy, but notably it was from a fellow player
After last December's Rome derby, Senad Lulic tried to belittle Rudiger by comparing him to a street vendor, saying he had just been "selling socks and belts" in Stuttgart before joining Roma
Lulic was banned for 20 days
Source : PA
Source: PA