Sir Alex Ferguson has boosted Andy Murray's bid to retain his Wimbledon title by passing on advice about how to win mental battles in sport.
The former Manchester United manager appeared to exclaim "That was good!" as he watched Murray seal a straight sets victory over Kevin Anderson on Centre Court.
The two Scots then got together a fter the match to discuss how to succeed in close matches.
Murray said: " We talked about my match today, spoke about football, (the) World Cup a little bit. Then he just said a few things, what he's observed when he's been watching me, not necessarily about technical or tactical things, but more sort of mental things, how you respond to tough or tight situations.
"Obviously you're going to listen to someone like him. He's witnessed a lot of big sort of tight sporting occasions. He obviously knows his stuff."
Murray explained that he is in contact with Sir Alex " throughout the year" but he denied that the ex-manager could join his support team.
"H e's someone I would obviously talk to if something came up that I felt I could benefit from speaking to him about something.
"But I wouldn't see myself employing him or offering him a job within my team," he said. "I wouldn't see that happening."
Murray now faces a quarter final clash with Grigor Dimitrov.
Also in the Royal Box today was entrepreneur Sir Richard Branson with his daughter Holly, Sir Cliff RIchard, who wore a garish blue suit and FA chairman Greg Dyke.
They were joined by Romanian former world No.1 Ilie Nastase, dressed in military uniform, the Countess of Wessex and the Duke of Kent.
Canadian star Eugenie Bouchard - who is named after the British princess - revealed it was ''a very special moment'' to play in front of royalty .
The 20-year-old beat Alize Cornet in straight sets to book her place in the quarter finals.
Bouchard and her twin sister are named after Princess Eugenie and Beatrice, and they have a brother, William, after the Duke of Cambridge, and another sister, Charlotte, after Princess Caroline of Monaco's daughter.
When she was asked about her family's interest in the royals, Bouchard said: ''First off, I should say parental interest, probably mostly mother. She named us, so I wasn't really aware of what was going on at that time.
''I did not know who was in the box. I will get that information later for sure.
''But I played on Centre Court last year. I was lucky enough to do that. Kate Middleton's parents were watching us then. That was really exciting.''
She added: ''To play on Centre Court at Wimbledon, it's the temple of tennis so a very special moment walking on the court.''
Meanwhile a cyber row appears to have broken out between British tennis supporters.
The area where fans at the All England Club watch Wimbledon on a giant screen was originally labelled as Henman Hill on Google Maps.
It was renamed Murray Mound after Andy Murray won his title last year, but it was changed back - possibly by a disgruntled Tim Henman fan - during the last two days.
A spokesman for Google said the changes are being made by users of Map Maker, a tool where people can add places to Google Maps.
It was also claimed today that Hawk-Eye technology could replace line judges in tennis.
The ball-tracking system has become a central part of Wimbledon in recent years, and f ormer champion John McEnroe has called for technology to take over, saying ''Do away with the umpires and linesmen completely''.
Luke Aggas, director of operations at Hawk-Eye Innovations, today said the idea of removing line judges is being considered for some matches.
''There are a few events, not necessarily main draw events, maybe the exhibition-type events, that are thinking about utilising the system without line judges and seeing whether that does increase the entertainment value to the match, whether the players end up calling their own lines and challenging each other, which would be quite an interesting dynamic,'' he told Live @ Wimbledon radio station.
McEnroe said ahead of this year's tournament that he thinks umpires are unnecessary.