Ravens starting cornerback Lardarius Webb exited practice early Friday due to back spasms.
The condition is regarded as relatively minor, but Webb went inside to the training room and missed the majority of the practice. Webb was able to jog off the field without any apparent difficulty.
"Nothing serious," Ravens coach John Harbaugh said.
Webb underwent sports hernia surgery following last season, making a sound recovery in advance of the Ravens' offseason conditioning program and practices.
Webb is entering his second season back from a torn anterior cruciate ligament suffered while covering Dallas Cowboys wide receiver Dez Bryant. Last season, he recorded 74 tackles, 22 pass deflections and two interceptions. Webb is entering the third year of a five-year, $50 million contract.
"I love Lardarius, he cares," Harbaugh said. "He wants to be great. He's faced some adversity with hip flexors and all that, and that's a tough injury to come back from. He's fighting through it like crazy. He's going to be fine.
"It just takes time and you have to work through it. I love him. I love his passion, the way he works and, of course, I love his talent. He's a good person, he's a good dad. I'm really proud of what he's done the last few years."