Manchester United legend Sir Bobby Charlton has said sorry to Malcolm Glazer's sons for the violent scenes that greeted their Old Trafford visit.
Joel, Avi and Bryan Glazer had to be escorted from the stadium in a police van as around 200 supporters clashed with police outside the ground.
"I apologised to them for what happened last night," said Charlton on Thursday.
"There is no room for violence in football. I don't think they were rattled by it, maybe a bit surprised."
Charlton told the Glazers it was important for them to realise just how strongly fans felt about their £790m takeover.
"I tried to explain they couldn't ignore the fans, who are so emotionally involved in the club but who sometimes do go a bit too far," he said.
Charlton met with the Glazers to hear what their plans were for the club.
"I'm like any other football fan. I've been waking up in the night wondering what was going on," said the World Cup winner.
"But they allayed a lot of my fears. I asked them questions about the future of the club - and the future of people who were wrapped up in the club.
"They were receptive to everything and said they'd do everything they could to make this a successful football club."
The Glazers arrived at the ground before 0800 BST on Thursday to continue their fact-finding tour of the club.
They also visited Manchester United's Megastore behind closed doors.
On Wednesday, fans opposed to the Glazers takeover of the club had gathered outside Old Trafford, many chanting "die Glazer, die" and erecting makeshift barricades to try and stop the brothers leaving.
Police used batons and dogs to clear an exit, with the brothers leaving in a decoy police van.
The Glazers had originally planned to leave in the same blacked-out people carriers in which they had arrived.
The protests also forced them to abandon plans to stay in a city-centre Manchester hotel.
Two arrests followed - one 19-year-old for possession of a CS gas spray can and a 15-year-old was cautioned for causing criminal damage to a police vehicle.