When the man saw that he did not prevail against Jacob, he touched his hip socket, and Jacob's hip was put out of joint as he wrestled with him.
Genesis 32:25

The hip or thigh (Hebrew: yarek) is connected to the making and breaking of covenants (Genesis 24:2-9, 47:29; Numbers 5:27) and the making and breaking of pride (Judges 15:8, Psalm 45:3, Jeremiah 31:19)

Perhaps the wounding of Jacob's hip was the end of his pride and the start of his real power in Abraham's covenant with God.