This is in the wake of a disappointing first season back with a club he won medals aplenty at between 2003 and 2009.
Ronaldo was conspicuous by his absence on Monday when new boss Erik ten Hag welcomed Manchester United’s international players to Carrington for the start of pre-season training.
The club accepted his explanation that family reasons meant he was unable to report for training, which they still do as the veteran forward’s absence rolled onto Thursday.
It is unclear whether Ronaldo will be on the plane when Ten Hag’s side head to Thailand on Friday for the start of their pre-season tour.
But Manchester United insist he will be part of the squad this season.
Having repeatedly said in recent weeks that Ronaldo is not for sale, the club maintain that stance remains unchanged amid reports they are in fact willing to sell the Portugal international.
There look to be landing spots for the vastly-paid former Real Madrid forward, and Chelsea are still weighing up their level of interest.
Fan favourite Ronaldo only returned to Old Trafford last summer, joining from Juventus for a fee rising to 23 million euros (23.5 million dollars).
Ronaldo scored 24 goals in all competitions and was named Sir Matt Busby Player of the Year.
But individual quality was unable to prevent his first season back at Manchester United ending trophyless and with a sixth-placed finish in the English Premier League (EPL).
Europa League football awaits as Ten Hag starts his rebuild, which will go up a gear when Manchester United travel to Thailand to face rivals Liverpool in Bangkok on Tuesday.
Manchester United then head to Australia, where fixtures against Melbourne Victory and Crystal Palace in Melbourne are followed by a friendly against Aston Villa in Perth.
Ten Hag so far only has one new face to call upon after Manchester United completed the signing of Feyenoord left-back Tyrell Malacia.
This means there are still key areas of the squad that need strengthening.
The club’s well-documented pursuit of Frenkie de Jong continues and is understood to have been complicated by the fact that FC Barcelona are owing the Dutch international wages.
Christian Eriksen has verbally agreed to join, with a three-year contract being drawn up, and the Old Trafford giants have a firm interest in Ajax defender Lisandro Martinez.
Discussions have been held about Ajax winger Antony, while Brazilian compatriot Andreas Pereira is heading for an Old Trafford exit.
Fulham have seen their offer of an initial eight million pounds (9.5 million dollars) and a further two million pounds in potential add-ons for the 26-year-old midfielder accepted by Manchester United.
(dpa/NAN)
