The Desperate Housewives' actress, who is participating in the Malibu triathlon for charity, posted the pictures with a sign saying "Sophia this one's for you".
Sophia is a sick young girl who is staying at the hospital that will benefit from her participation.
She wrote, "I received a letter today from the father of a young patient at Children's Hospital Los Angeles.
"This is the charity benefiting from the coming Sunday's Malibu Triathlon in which I am tackling the swim portion of a Tri- Team including myself, Mr. Bob Iger and Julie Bowen."
Sophia is a sick young girl who is staying at the hospital that will benefit from her participation.
She wrote, "I received a letter today from the father of a young patient at Children's Hospital Los Angeles.
"This is the charity benefiting from the coming Sunday's Malibu Triathlon in which I am tackling the swim portion of a Tri- Team including myself, Mr. Bob Iger and Julie Bowen."