Cristiano Ronaldo calling Sir Alex ‘Boss’ still.
One way Ten Haag can get the best out of Onana is by making him compete for his place. The same way Sir Alex Ferguson was able to get De Gea playing at his best.

De Gea had a terrible first few months in English football. Making loads of error and becoming a target for opposition teams especially in set piece situations. It wasn't until Andres Lindegaard took his place that David De Gea improved his game and impressed the manager the very moment he got another chance.

Ten Haag should do the same to Onana with Altay Bayindir.

Sir Alex Ferguson on Alessandro Del Piero: "After a game against Juventus, Ryan Giggs and Gary Neville asked me to do everything possible to sign Del Piero for United because he had destroyed our whole defence. So I contacted him, but he refused to listen to my proposal.

In 2006, when Italy won the World Cup and the match-fixing affair in Serie A came to light, I contacted him again, knowing that Real Madrid wanted him too. I was sure he would end up playing for us or for Real this time, so I said to him: ‘Alessandro, after so many years, I still want you. Don't go to Madrid, now is the time to come here to England. You will be the star of our team.’.

He just laughed and replied: ‘Mister, I believe we already had this conversation several years ago. I respect you a lot, but Juventus have problems at the moment (relegated to Serie B) and I can't to be a coward now’.

He preferred to stay at Juve to bring the club back to Serie A rather than sign for United.”