Michael Gehlken of the Union-Tribue San Diego reported on Monday that Ohrnberger will undergo back surgery and his 2014 season was over, so Schefter’s report is really more of a confirmation.
The Chargers are likely to turn to rookie Chris Watt as their starting center for the remainder of the season.
Ohrnberger, 28, is in the final year of his contract and will be an unrestricted free agent next season. Pro Football Focus has Ohrnberger rated as the No. 38 center in the league out of 42 qualifying players.