A number of Manchester United players are reportedly concerned by Ole Gunnar Solskjaer's approach to pre-season training.
The Red Devils' preparations for the 2019-20 campaign started on Monday with a fitness session in Perth following a long-haul flight from Manchester.
ESPN claims that there is considerable disquiet behind the scenes as United's squad members believe Solskjaer is focusing too heavily on fitness.
The report indicates that United's foreign players have questioned his 'British' approach to training, with not enough importance being placed on ball work.
Solskjaer admitted last season that his players lacked fitness following the Jose Mourinho era, but there are suggestions that he could burn out his players.
United, who finished sixth last season, take on Perth Glory in their first summer friendly on Saturday.
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