Roma was willing to help Brazil's Chapecoense after last year's tragedy.
Almost the entire squad was killed in November last year, when the plane carrying them to the Copa Sudamericana final crashed, with just three players surviving their injuries.
“Only Barcelona were with us from the beginning," club president Plínio David De Nes told Fox Sports Mexico.
“They made money available to us, and we were invited to play the Joan Gamper trophy in August, with the revenue to be shared with Chapecoense.
“Roma also offered to play a game with us, but we have a very busy fixture list. We have almost three games a week."