Der Kaiser won the World Cup as West Germany’s captain in 1974 and as a manager in 1990.
Russell Martin said he had "no interest" in saying hello to him.
About 200 members of the country’s security forces, including elite police squads, are looking for Luis Díaz's father.
Everton said the club "has lost a chairman, a leader, a friend, and an inspiration”.
The former footballer faced a backlash for signing a deal to be an ambassador for the country during the 2022 tournament due to its human rights record.
"If we can’t make girls feel welcome on the pitch and keep them playing, it’s game over for the Lionesses’ legacy," says Jill Scott.
When Spanish football should have been jubilant, it was imploding.
A 1-0 victory meant Spain secured its first Women's World Cup championship.