Manchester United insist absent Cristiano Ronaldo is still not for sale

Cristiano Ronaldo has yet to join up for pre-season training (Gareth Fuller/PA)

Cristiano Ronaldo remains absent from pre-season training but Manchester United maintain the frustrated star is not for sale.

Over the weekend it emerged the 37-year-old had asked to leave Old Trafford if an acceptable offer arrived following a disappointing first season back with a club he won medals aplenty at between 2003 and 2009.