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In addition to Shay Given's heart-wrenching display, fighting back tears after Swansea's Speed tribute, and Craig Bellamy pulling out of the Sunday Premiership match against Manchester City to grieve for his manager, here are just some of the remarks other folks around the world of football have made in tribute to the Welsh footballing icon:
"It's incredible. I think I'm still numb and still in shock like everyone else is. You read about this in the newspapers. It doesn't happen to one of your best mates. I'm just so, so sad and shocked and feel for Louise and his two boys and his mum and dad, and I can't imagine the pain that they're going through.
I got a few missed calls off one of his best mates and so I rang him back and he gave me the news. And at first, I thought, 'He's not the type to joke about things like that,' and even 10 minutes later I was waiting for him to call me back and tell me it was all a joke." —Alan Shearer, to the BBC
"There are people in football who will drop you like a stone when you retire but that’s not Gary. He had time for everyone, always. He was a lovely guy. It was an honour to know him and an honour to play with him.
The first time I met him was when I was called up to the Wales squad for the first time.
Some of the other veteran players looked down on me because I was a scrawny kid who played for Crewe, but not him. He treated me the same as if I was Ian Rush or Mark Hughes and that made me feel 10 feet tall." —Robbie Savage, in his Mirror column
"Today the world has lost a great football manager but even more sadly a great man. He will be missed by all." —Wales captain Aaron Ramsey, via Twitter
"Gary Speed was one of the nicest men in football and someone I am honoured to call a team-mate and friend.
Words cannot begin to describe how sad I feel at hearing this awful news. It goes without saying my thoughts are with his family at this tremendously sad time." —Ryan Giggs, via MUFC
“He was a smashing lad and was really well respected.
We don’t know the circumstances obviously, and there’ll be a lot of people who are saddened at what’s happened, but I think the most important people at this particular moment in time is his wife and kids – they must be absolutely devastated.
It’s at times like this that the football becomes a wee bit irrelevant.
He was a very respected man in and around football, not only for his ability but for the guy as a person." —Kenny Dalglish, The Journal