Rudiger could also have played international football for his mother's homeland, Sierra Leone
Roma will not be charged for "monkey chants" made by their fans towards Chelsea defender Antonio Rudiger.
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Uefa opened a case against the Serie A club last month, but BBC Sport understands a lack of evidence has led to proceedings being closed.
Rudiger came on as a 77th-minute substitute during the Champions League Group C tie which ended 3-3 at Stamford Bridge on 18 October.
The German international, 24, moved to Chelsea from Roma in the summer.
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Before his move to England for an initial £29m, Rudiger said racism at football matches was a "serious issue" in Italy.
Source: bbc.com