Boldin was hurt while making a third-quarter catch Sunday during the Ravens' 33-14 win over the New York Giants. He's likely to be limited in practice this week.
"Anquan's got a shoulder bruise," Ravens coach John Harbaugh said Monday. "So we'll see how that develops during the course of the week. All the other stuff that we had were basically things that will be day-to-day-type things. There were no major injuries. So we're very fortunate there. So we continue to get a little bit more healthy, and some of the guys who have been working through some injuries should get a little bit better throughout the course of the week."
Linebacker Ray Lewis already has been ruled out of Sunday's game at Cincinnati. Lewis will have missed 10 games after tearing his triceps on Oct. 14. The Ravens are 5-4 without Lewis.
The Ravens have won the AFC North and can earn the No. 3 seed in the AFC playoffs with a win and a Patriots loss.
Bengals coach Marvin Lewis said he will not rest any of his players against Baltimore despite being locked into the No. 6 seed.
"I don't really have any beat-up guys. So, the only thing that is at stake is you go out and play to win the game every time we go, win," Lewis said Monday, according to The Cincinnati Enquirer. "It's a different team, different group, different people. Playing different teams, different situations, different circumstances."
ESPN NFL Insider Adam Schefter contributed to this report.