Glee star Amber Riley wears knee brace to Dancing With The Stars practise

The 27-year-old Glee star once again wore a protective brace on her right knee when she when she arrived at the Hollywood studios on Thursday.

Glee star Amber Riley wears knee brace to Dancing With The Stars practise

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Sweaty Glee star Amber Riley sports leg braces and chugs energy drink after being put through her paces by dance partner Derek Hough

Glee stars Chris Colfer, Lea Michele and Naya Rivera send video message to DWTS winner Amber Riley