Rice practiced on a limited basis Friday and is officially listed as questionable for the Ravens' game against the Pittsburgh Steelers.
He was injured in the fourth quarter of Sunday's 24-17 win against the Cleveland Browns. An MRI exam earlier this week revealed no ligament or cartilage damage.
Although he did not practice Wednesday, Rice said he was able to run and cut a little bit on his own.
"If I'm able to do the things I can do and be the Ray Rice I can be, there's no question on whether I'll play or not," Rice said. "At the end of the day, Sunday's the ultimate test."
He also said he's certain that the AFC North rival Steelers won't target his knee.
"I don't think they're dirty," Rice said. "I don't think anybody has the intent to go out there and hurt anybody. I have respect for them, they have respect for us. I don't think it's going to be one of those situations where they're going to take a blatant shot at the knee."
Information from ESPN NFL Insider Adam Schefter, ESPN.com senior NFL writer John Clayton and The Associated Press was used in this report.