Manchester United target Marco Reus has clashed with Borussia Dortmund teammate Roman Weidenfeller.
The Daily Mail says towards the end of Tuesday's German Cup semi-final tie against Wolfsburg, Reus caught the brunt of an angry rant from goalkeeper Weidenfeller.
Weidenfeller was allegedly aggrieved at Reus' lack of energy tracking back.
Though the keeper dismissed it as "a tactical direction", Dortmund coach Jurgen Klopp admitted that he "was forced to intervene".
"Marco has been at an amazing level for the last three weeks, at the end he just didn't have any oxygen left," said Klopp.
