Sir Alex retirement gets 1.4m Twitter mentions in 1 hour

Twitter said the news of Sir Alex's retirement received more than 1.4 million mentions in the first hour after the story broke at 9.18am.

It compares with one million mentions in the four hours after the death of Lady Thatcher was first announced last month.

The original tweet from Manchester United was retweeted or made a favourite tweet more than 18,000 times, while the official club hashtag #ThankYouSirAlex had more than 100,000 mentions within the hour.