Coventry Storm were beaten 61-29 on Sunday afternoon at Mildenhall.
The Storm has had Martin Knuckey suffer a compound right leg fracture in a heavy first bend accident in Heat 7
And in Heat 10 reserve Jamie Halder suffered a suspected broken left wrist
Storm manager Laurence Rogers said to the Bees website: “I don’t know how many black cats we’ve run over, but it must be a lot – we came here with six riders and went home with four.
“Martin has a compound open fracture so that’s going to take a bit of getting back from, and it looks like a fractured wrist for Jamie so it’s not a good day at all.
“Our next meeting isn’t until June 10, so I’ve got ten days to try and patch up the side before that.
“It was a tremendous performance from Callum Walker, and also Jamie – the two reserves did us proud.”
MILDENHALL 61: Dan Halsey 15, Jon Armstrong 13+1, Connor Mountain 9+1, Alfie Bowtell 8+2, Connor Coles 8+2, Chris Widman 6, Lee Springthorpe 2+1.
COVENTRY STORM 29: Dan Greenwood 12, Callum Walker 8, Ryan Terry-Daley 4, Jamie Halder 3+1, Conor Dwyer 1+1, Martin Knuckey 1, Kyle Roberts (no.8) 0, Liam Carr r/r.