“There was an opportunity there, and it didn’t materialize,” Haslam told USA Today.
The 49ers have denied the Pro Football Talk report that a potential trade was discussed.
There have been reports that Harbaugh didn't want to be traded.
The Browns have not denied the report.
The 49ers haven't been able to reach a contract extension with Harbaugh, who's known for having a combustible personality.
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Aaron Wilson covers the Ravens for The Baltimore Sun.