Sofia Robbin Sloan Torres

Sofia Robbin Sloan Torres is the first child to BFFs Callie Torres and Mark Sloan with Arizona Robbins. {C When Arizona wins a prestigious grant to help treat children in Malawi, a disgruntled Callie agrees to move there with her, as it is a 3-year position. However, her lack of enthusiasm causes Arizona to end their relationship in the airport, and leave without her. A heartbroken Callie moves in with Mark, and they have a one-night stand. Arizona returns for Callie, apologizing and hoping for forgiveness. Callie initially rebuffs her, and later reveals that she is pregnant with Mark's baby. Arizona agrees to raise the child with her, but dislikes that Mark will be a permanent part of their lives. In Song Beneath the Song when Callie is twenty-three weeks pregnant, she plans a getaway-weekend to thank Arizona for her support. En-route, Arizona proposes to her, but before Callie can respond they crash into a truck. Callie is treated at Seattle Grace, where her daughter is delivered early. When she regains consciousness, she accepts Arizona's proposal.

Infant struggles
Sofia was delivered by C-section during one of Callie's surgeries following the crash. Addison Montgomery, Callie's very good friend, returned from Los Angeles to deliver the baby, since she still holds privileges at Seattle Grace-Mercy West Hospital. Sofia was delivered 3 months early without a heartbeat, at 1 pound and 1 ounce. Arizona was able to resuscitate her, and she was placed in an incubator, as lungs and other internal organs hadn't fully matured. Dr. Lucy Fields failed to give Callie steroids before the delivery, which would have matured Sofia's lungs. She was then brought to the NICU, and was on a ventilator, as she was unable to breathe on her own. {C {C In the meantime, Callie was struggling to recover from her surgeries, and wasn't allowed to see Sofia. Cristina, who provided much emotional comfort to Callie, gave it to her straight: “She’s mostly tubes and wires and she looks more like a chicken than a baby, like a featherless, beakless chicken. You want to wait ’til she’s cuter”, to which Callie replied "You're the worst godmother ever." However, Cristina organizes for Callie's stretcher to be driven to the baby care unit, so Callie can get a peak at her daughter, which Callie was very appreciative of. Callie pushed herself too hard, and eventually had to undergo surgery again to repair internal injuries sustained while pushing a stretcher carrying Cristina and Meredith. {C {C At 5 weeks old, Sofia was in heart failure, and required surgery which Dr. Stark performed, and he allowed Arizona to be in the OR, as she is not biologically related to Sofia. During the surgery, Sofia started to bleed out, which caused a devastated Arizona to run out of the OR, however, Dr. Stark was able to find the bleeder and repair it, and Sofia was stable. {C After 12 weeks of recovery, Callie was discharged from the hospital, but reluctant to leave unless Sofia could leave with her. Dr. Robert Stark, the pediatric surgeon on Sofia's case, eased Callie's tensions by allowing Sofia to be discharged if she passed the infant carrier test. She passed, but Callie was scared to take her home, because of the dangers of cars. Miranda Bailey calmed her down, and Callie, Mark, Arizona and Sofia left the hospital.