There's something uncomfortable about watching a once great sportsman struggle on when they're past their best. It doesn't feel right knowing, deep down, they can no longer do the things they once could.
It's the feeling the Manchester United fans might have had as Robin van Persie toiled away against Swansea City on Saturday. For whatever reason, things just aren't going his way this season.
At 31-years-old, it's understandable. Mind and body begin to slow, just a fraction, towards the end of a career. And, in the Premier League, that can make all the difference.
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