"Today is a day of mixed emotions," Olsen wrote on Instagram. "A day we have prayed for has arrived. We were alerted last night that there was a donor match for T.J. to receive his heart transplant. "Walking our little boy, with tears of hope and fear in our eyes, was one of the toughest moments of our lives. We ask for everyone's prayers for T.J. and his amazing team of doctors and nurses."
