United chief Jose Mourinho has confirmed that Shaw is in line for a new deal with the club, having turned around his career at Old Trafford. Mourinho later explained that he was asking Pogba to concentrate on his game and substituting him was a tactical decision.
Mourinho has been utilising Pogba as part of a two-man midfield but the France global has struggled to cope with both attacking and defensive responsibilities.
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Restored to the side, Pogba was hauled off the pitch by United boss Jose Mourinho just after Newcastle scored - a unusual move considering that Pogba is usually one of the United's most creative players and there to provide the ammunition for the likes of Romelu Lukaku and, now, Alexis Sanchez.
United have wobbled of late, suffering two defeats in their last three outings, and need to turn things around heading into a crucial run of games which will see them face Huddersfield, Sevilla and Chelsea across FA Cup, Champions League and Premier League competition.
In some rather alarming news for United fans, there are reports from French newspaper L'Equipe that Pogba regrets returning to United and is not on the best of terms with Mourinho at the moment.
However, Keane reckons the formation is beside the point, and Pogba should be able to play well in a two-man midfield or in a three-man midfield.
"The guy needs to do better himself and focus on what football is really about".
Keane's criticism can be blunt, but Mourinho would probably agree with him, in private at least.
It may not be the best use of Pogba's talents to ask him to be so disciplined, but he's evidently not following his manager's instructions.