Left offensive guard Kelechi Osemele isn’t a lock to undergo offseason back surgery, according to Harbaugh.

Osemele was evaluated prior to the season and it wasn’t recommended that he undergo surgery and no procedure is currently planned at this time, according to a source.

Harbaugh said it remains undetermined if Osemele, who was forced out of the Miami game with back spasms, will require surgery.

“He’s a tough guy, fights through a lot of different things,” Harbaugh said. “He had the same issue last year and he fought through it last year. All those things get addressed in the offseason. They get addressed if they’re needed to be addressed.

“We looked at it last year, and it wasn’t addressed that way. So, maybe this year it will be, but I really don’t know. K.O. is tough, man.”

No serious injuries were reported from the Ravens’ loss to the Steelers.

“We’ve got different bumps and bruises and things that we will attempt to heal up this week,” Harbaugh said. “From that standpoint, we probably are in a positive mode going forward here into the bye week.”

Disappointed in special teams

It was a glaring sequence for the Ravens’ kickoff team on wide receiver Emmanuel Sanders’ 44-yard kickoff return where he stepped out of bounds at the Steelers’ 37-yard line.

Reserve safety Jeromy Miles, acquired off waivers from the Cincinnati Bengals to be a major contributor on special teams got blocked. And so did linebacker Albert McClellan, fullback Kyle Juszczyk and safety Michael Huff.

In particular, Huff and wide receiver Deonte Thompson failed to provide outside containment after lining up closest to the sideline. Huff was easily blocked and didn't do a good job as he failed to fight through a block.

“We’re going to go find some guys that want to play special teams,” Harbaugh said. “We’re not going to have guys out there letting the ball run outside of them. That’s unheard of. If it means changing people out, then that’s what we’ll do.”