Tyrann Mathieu mourns, celebrates his grandmother, Marie, on Twitter

TEMPE, Ariz. -- Arizona Cardinals safety Tyrann Mathieu spent part of Tuesday morning publically mourning and celebrating the life of his grandmother, who passed away earlier this week.

Marie Spellman Mathieu was 75.

Mathieu told ESPN last week that "in essence she is my mother." Marie raised Tyrann until he was 5 years old, when he was adopted by his parents, Tyrone and Sheila. But Marie was an influential and large part of Tyrann's life until the day she died.

"It kind of puts life back into perspective, that family is everything and we're not going to be here forever," Mathieu said. "We really have to live up to our potential, and I felt like my grandmother did that."