Some things are bigger than baseball for David Ortiz.

The Boston Red Sox slugger lent his time to pediatric patients at Massachusetts General Hospital on Thursday as part of his work with the David Ortiz Children’s Fund, which raises money for children with life-threatening illnesses in the Dominican Republic and Northeastern United States.

Big Papi spent time with the kids at Mass General and their families, giving them lasting memories and much-needed smiles.

Check out Ortiz’s visit in the video above.