Sports director Leverkusen Simon Rolf said:and external With Erik Ten Hag, we brought us an impressive successful coach on the field.
“With three league titles and a local cup, he and Ajax dominated Dutch football from 2018 to 2022.
“Eric showed his quality as a coach with the success that followed in Manchester United under difficult circumstances at times.”
During the reign of former Liverpool midfielder Alonso, Leverkusen won the league and doubled a cup in 2023-24.
They finished second in the Bundesliga this season, which is 13 points behind the Bayern Munich champions.
Ten Hag, who will officially start its new role on July 1, said Leverkusen “is one of the best clubs in Germany as well as among the best clubs in Europe.”
He added: “I came to Leverkusen to continue the ambition shown in recent years. It is an attractive challenge to create something together in this period of change and develop an ambitious team.”