Former Germany coach Rudi Voller has returned to Bayer Leverkusen as sporting director.

Voller, who led Germany to the World Cup Final in 2002, but resigned after a disappointing Euro 2004, has agreed a two-year deal with the Bundesliga side.

Voller began the season in charge of Roma, but resigned after less than a month.

Voeller ended his career at Leverkusen in 1996 and was director until 2000.