Right tackle Anthony Davis isn’t practicing today after he sustained a concussion late in the fourth quarter of the 49ers’ 16-10 against the Giants on Sunday.

Davis was injured on the first play after the two-minute warning, Colin Kaepernick’s five-yard run on 3rd-and-7. On Sunday night, Davis detailed Jim Harbaugh’s reaction to the clock possibly stopping for an injury with the Giants out of timeouts.

“I remember waking up to Harbaugh saying “get him up and off the field!” Davis said on Twitter. “We don’t want the clock to stop!” lol Can’t make this s— up.”

Asked today about his reaction to Davis’ injury, Harbaugh said: “What did I holler? ‘Get off the field.’”

Harbaugh said he wasn’t aware Davis had a concussion until he reached the sideline. In general, though, he said he wants players to get off the field in such situations.

If he can,” Harbaugh said. “If it’s humanly possible. I wanted to remind him of that. If he can’t, he can’t. I wanted to holler that out.”

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Inside linebacker NaVorro Bowman was cleared to practice Tuesday, but he probably won’t get on the field until next week, at the earliest. Harbaugh said Bowman will likely continue to rehab his surgically repaired left knee this week.

The 49ers have a 21-day window during which they can activate Bowman to the 53-man roster. Last week, defensive coordinator Vic Fangio said it was possible Bowman wouldn’t play this season.

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Cornerback Tramaine Brock (hamstring) is not practicing today, but it’s possible he could return for Sunday’s game against Washington, a source said. Brock’s status won’t be known until the end of the week.

Twitter: @Eric_Branch