Pep Clotet has guided Birmingham to three wins from six Championship games so far this season
Birmingham City have signed free agent Bernard Sun on a two-year contract,
The 20-year-old attacking midfielder left Spanish side Estudiantes de Murcia in the summer and has been training with Blues during pre-season.
A former China Under-18 international, Sun was born in Beijing, but moved to Germany when he was seven and has a German passport.
He came through the youth ranks at Kaiserlautern before joining Eisbachtal and then moving to Spain.
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Source: bbc.com