Manchester United boss Sir Alex Ferguson has fined Cristiano Ronaldo for texting during training.

The Manchester Evening News says Ronaldo has reportedly been fined £8,000 for texting during a training session.

The United star is said to have been caught by Ferguson sending four texts during breaks in the middle of a session at the Carrington training complex.

And the 23-year-old was landed with on-the-spot £2,000 fines for each offence as part of a new crackdown on the use of mobile phones at the club, it has been reported.

Disciplinarian Sir Alex has earned a reputation during more than 21 years at Old Trafford of ensuring his players focus on their game and are not distracted from winning trophies.

A spokesman at United declined to comment.