In a series of workout videos posted by his trainer Oneil Pryce, Lamar appears to be having a difficult time lifting a modest amount of weight.
He sluggishly walked through a tire flipping exercise.
Despite Oneil's efforts to get Lamar excited about the workout, Lamar's energy was painfully low.
At one point, Oneil refused to continue counting Lamar's repetitions until he did them to the trainer's satisfaction.
Despite his struggles, Lamar had a message to send: "F*ck the haters."
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