How Are Frank Lampard and Harry Redknapp Related?

Frank Lampard's mother Pat died of pneumonia in 2008 at the age of 58, according to the Daily Mail. She was the sister of Sandra Redknapp, who is married to Harry Redknapp. Lampard and Redknapp have both found fame in soccer, the former as a player and the latter as a manager. Lampard made his Premier League debut for West Ham while Redknapp was managing the team.