The Scotland international returned to Melwood last Saturday but had his pre-season programme delayed slightly due to the surgery.
Robertson was part of the squad that travelled out to the United States for the Reds’ pre-season tour, however, and reported positive news on his recovery following Wednesday morning’s training session.
The left-back is ready to feature in the three matches scheduled in America – including against Borussia Dortmund at Notre Dame Stadium on Friday night if selected by the manager.
“It’s up to the gaffer but I think I’m ready for Friday,” Robertson told Liverpoolfc.com. “We’ll soon find out!