The Italian star eased to a 6-3, 6-3, 6-4 win under the new roof on Court Suzanne Lenglen as rain fell at Roland Garros.
Australian Open champion Sinner showed no signs of struggling with his fitness despite missing the recent Rome Open with a hip injury.
The Italian star struck 32 winners and broke Eubanks' serve five times as he set up a second-round meeting with French veteran Richard Gasquet.
"I'm just happy to be back on court. I was injured so very happy to be back here," said Sinner.
"It's a very special tournament for me. Читать дальше...