Manchester United striker Romelu Lukaku has been told to delete a tweet that revealed the squad's preseason running stats, sources have told ESPN FC.
On Friday, the striker posted data that showed he had clocked the second quickest top speed during training in Perth behind only Diogo Dalot.
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The tweet was accompanied by the caption "lack of pace" and a laughing emoji. It also showed defender Luke Shaw and midfielder Juan Mata had recorded the slowest times.