The injury-plagued Italy international is hoping to stay healthy as he looks to prove himself at the Stadium of Light.
The Italian, who scored just one goal for Liverpool in an injury-plagued season, has linked up with countryman Paolo Di Canio at the Stadium of Light and is eager to return to form and fitness.
"My first thought is to have a clear season with nothing major happening," he told the Evening Chronicle. "I’ve always proved myself in the short term. I would like at least six or seven months without getting injured, which would mean all season.
"Last season was tough, mostly because of the injuries, not the move. Big-money moves happen in football. So do injuries, but they take you down, especially when all you want is to do well for a new team. Basically, your body pulls you out."
Reds boss Brendan Rodgers had previously planned to keep Borini in Merseyside this season, but Victor Moses' late loan move necessitated the 22-year-old's departure to Sunderland. And now Borini insists he wants to make up for lost time.
"I wanted to prove myself at Liverpool last season and I couldn’t really do it," he continued. "I’ve come here to do that now. I’m fully fit now, kind of. I had a bit of a problem this week with a hamstring, but it’s nothing serious. It’s just adapting to a different kind of work in training. My body needs to adapt, that’s all."