Justin Bieber was limping on stage at his concert in Cleveland last night -- and sources close to the singer tell TMZ his people are hoping it's just a bad sprain.
The injury occurred midway through the concert -- but we're told Bieber soldiered through the pain and finished the show.
Sources close to Biebs tell us they will know more about the injury today.
Story developing ...
Justin Bieber Injures Knee During Live Concert
11/12/2010 12:22 PM PST BY TMZ STAFF
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