Speedway has been paying tribute to Lee Richardson following the British rider's death, aged 33.
The Lakeside Hammers captain, who died after a crash in Poland, represented eight English clubs as well as his country during a 17-year career.
Monday's meeting at Coventry has been postponed but Wednesday's trip to Poole is scheduled to go ahead, while Friday's home tie against Swindon - a former club of Richardson's - will act as an evening of remembrance for the former World Under-21 champion.
Fellow riders and key figures in the sport have spoken of their memories of Richardson.
Lakeside Hammers co-promoter Jon Cook told BBC Radio 5 Live
"The world of speedway is a sadder place. What we're focused on as a club is we may have lost a speedway rider, but there's a massive gap in a lovely family now and it's absolutely tragic."
Peterborough Panthers boss Trevor Swales told BBC Radio Cambridgeshire
"It doesn't get much worse than this. We're all still in shock.
"Lee was probably - if not the nicest - one of the nicest guys you could ever wish to meet. He never gave you any trouble as a rider."
Poole promoter Matt Ford, who made Richardson his first ever signing in 1999, told BBC Solent
"He was the first person I wanted as promoter as we knew he had such a great career ahead of him.
"He was a young kid coming through and he went on to achieve great things for the club and afterwards. He set us on the road to being a successful club and Lee is a huge part of the foundation of our success.
"He was incredibly hard to beat, and he was the type of rider you wanted to work with rather than against. Clearly this is awful news and it will take time to sink in."
Lakeside Hammers owner Stuart Douglas told BBC Essex
"He was a hugely popular rider in this country and is probably the most successful British rider in Poland of recent years.
"He was a fantastic team member, great with all the other riders, particularly the younger British riders we have.
"He was such a cheery guy. He always had a smile. Always had time for the fans and is a huge loss to speedway."
Swindon Robin team manager Alun Rossiter told BBC Radio Berkshire
"He leaves three very young boys, it's very sad. Lee was an absolute role model. Very professional in the way he went about his business.
"He was immaculate on the track and off it, very professional. I must admit the tears have been flowing."
World champion Greg Hancock on Twitter
"It doesn't seem real and another innocent one is gone. Our thoughts are with the whole Richardson Family. RIP Lee."
Great Britain rider Lewis Bridger on Twitter
"RIP Rico. Top, top bloke in the sport. I looked up to you so much man. I'm in tears right now. I really don't want to believe this."
Belle Vue rider Rory Schlein
"Speedway at the [moment] means nothing. Will miss you Lee [and] our laughs we had on our flights and I will always remember."