MANCHESTER, England — The world of soccer was waiting for an update on the condition of Alex Ferguson on Sunday, a day after the former Manchester United manager underwent emergency surgery for a brain hemorrhage.

Social media continued to be awash with tributes and get-well messages for the 76-year-old Ferguson, who was in intensive care late Saturday according to a statement from United.

That has been the only comment so far from the English club, where Ferguson spent almost 27 years in charge before retiring in 2013 as the most successful manager in British soccer history.

Among those sending their best wishes to Ferguson was Manchester City manager Pep Guardiola, who said “a big hug and our thoughts are with his wife, Cathy, and the Manchester United family. I was glad to have dinner with him two weeks ago, and hopefully he can recover as quickly as possible.”