As one of the most charismatic people in British sport, it is somewhat unsurprising that sports people have been taking the time to pay tribute to the 72-year-old.
Read their words on Twitter below.
"Very sad to hear that the legendary Sid Waddell has lost his fight with bowel cancer. Darts commentary will never be the same again. #RIPSid."
Former England striker Michael Owen
"Sad news to hear about sid waddell. Made darts so much better to watch. He will be missed. Legend. RIP SID."
Manchester United striker Wayne Rooney
"Can't believe the news that Sid Waddell died yesterday i am emotional right now such a great personality and a good friend gonna miss you."
Dutch darts player Raymond van Barneveld
"See that Sid Waddell has lost his fight with Cancer. He really was the voice of his sport. A brilliant, witty, colourful commentator #RIPSid."
Former England striker Gary Lineker
"Sid Waddell What a legend , you'll be missed , best darts commentator ever ! Rip Sid x."
Former Welsh international footballer Robbie Savage
"RIP Sid Waddell a true legend,we will all miss u mate."
Darts player Kevin Painter
"So sad to hear the news of the passing of a legend. Sid Waddell RIP. Sad day for Darts, our thoughts are with his family."
Darts player Alan Warriner
"So so gutted, The legend Sid Waddell passed away last night. Thoughts are with his family right now. #SidTheLegend."
Former darts player Wayne Mardle
"Such sad news about the voice of darts Sid Waddell has passed away. Watching the darts wont be the same again."
Newcastle United midfielder Ryan Taylor