C.J. Mosley’s availability for the Ravens’ home game against the Denver Broncos on Sunday appears to be in jeopardy after the middle linebacker sat out Friday’s practice.

Although the three-time Pro Bowler was limited in Thursday’s session and earned a questionable tag in the team’s final injury report of the week, he did not practice Wednesday or Friday because of a bone bruise in his left knee that is expected to sideline him for some time.

Coach John Harbaugh did not shed much light on the subject when asked what he learned about Mosley’s status from Thursday’s practice. “The injury report’s coming out,” he said. “It’s a creative way to ask the question though. I appreciate it.”

More on fine from NFL: Harbaugh bristled at questions Friday about the Ravens being fined $200,000 by the NFL for violating coach-to-player communications during preseason games.

The team acknowledged on Wednesday getting docked for improper use of headset-equipped helmets by multiple players. The league’s Coach-to-Player Communications policy prohibits multiple players from being on the field at the same time with the communication devices.

Addressing the penalty for the first time and two days before Sunday’s home game against the Denver Broncos, Harbaugh said he was unaware of the transgression until he was informed of it by general manager Ozzie Newsome last week.

Asked how many players with headsets were on the field at the same time, Harbaugh replied, “I don’t know. However many guys that had helmets with the green dots on them. I don’t know the details of it. It’s one of those things where I don’t think you get too worked up about it.”

Harbaugh emphasized that the coaches were unaware of the error and said team owner Steve Bisciotti did not have a reaction, adding, “You’re making way too much of it. Way too much of it.”

Harbaugh then bristled when reminded that the franchise has been disciplined previously. The Ravens have been fined three times during Harbaugh’s tenure for violating guidelines regarding physical contact and activity during offseason workouts.

“Way to spoil the mood, you know? Way to spoil it,” he said. “Your implication is, I don’t even want to talk about it because it’s so insulting. So I’m just going to stay out of it and stay away from it. But I appreciate you asking it. It just is, it just is. We do the best we can. We’ve got people who are pros, who work hard. You want me to come out here and start rolling people under the bus? Who work hard? Who make a living on what they do and do their best? You want me to start saying it’s somebody’s fault? It’s preseason.

“They didn’t think there was a rule that applied to the preseason for fitting guys in different helmets,” he continued. “How many helmets do you want to have ready for the preseason? We could have two helmets for everybody. What’s the expense for that? So that was their feeling on it. That’s what he felt the rule was. There’s no advantage gained, there’s no edge gained.”

No nostalgia for Martindale:Don “Wink” Martindale has enjoyed a long, successful career in college and professional football. One of his stops was with the Broncos, with whom he was the defensive coordinator for the 2010 season.

Sunday will give Martindale, the Ravens defensive coordinator, an opportunity to reacquaint himself with his former employer, but he vowed not to have any “goosies” about the encounter.

“This game always has been and always will be about the players,” he said. “Denver’s a blip on the radar screen. I think there’s one guy left that’s on that roster when I was there [wide receiverDemaryius Thomas]. I’ll be glad to say hello to him. Good guy. But it’s a blip on the radar screen, it really is.”

Extra points: Harbaugh declined to elaborate on the reasons for promoting undrafted rookie running back De’Lance Turner over another undrafted rookie in Gus Edwards from the practice squad when the team placed Kenneth Dixon (knee) on injured reserve Sept. 12. “There’s no comparison between the two guys,” he said. “Both guys are really good guys, and either one of them could’ve been brought up and could’ve played.” … Towson redshirt junior quarterback Tom Flacco was named the Colonial Athletic Association’s Co-Offensive Player of the Week for his 320-yard, three-touchdown performance in Saturday’s 45-35 upset of No. 10 Villanova. Ravens quarterback Joe Flacco grinned when asked about his younger brother’s accomplishment, saying, “That was a big win for those guys against Villanova. I was never able to beat them.”

edward.lee@baltsun.com

twitter.com/EdwardLeeSun

Injury report

Denver at Ravens

BRONCOS: Questionable: CB Adam Jones (thigh); LB Brandon Marshall (knee); S Dymonte Thomas (abdomen); T Jared Veldheer (concussion).

RAVENS: Out: CB Anthony Averett (hamstring); DT Willie Henry (abdomen); TE Hayden Hurst (foot). Questionable: LB Matthew Judon (hamstring); LB C.J. Mosley (knee); DT Michael Pierce (foot); T Ronnie Stanley (elbow).