Glamorgan fast bowler Mike Reed looks set to miss the rest of the season and Graham Wagg has been ruled out for a month.
With his bowling resources stretched, coach Toby Radford could return to the loan market.
The hugely promising Reed has not played this season after developing a knee problem - which needed two operations – last winter.
Wagg picked up a side strain against Gloucestershire last week and he is likely to be out for the rest of July.
With Darren Sammy now departed following his spell with the club, Radford could be forced into the loan market.
“I don’t think Mike is going to bowl a ball for this season,” he told Wales Online.
“We hope Waggy will be back between three or four weeks at best. These side strains can be awkward and if aggravates it again he will be back to square one.
“Our bowling resources are being massively stretched. Huw Waters is not bowling, John Glover is injured and all-rounder David Lloyd has a hamstring problem. It’s very thin and we may need to look at another loan.”
Radford says the playing schedule is partly to blame for the amount of injuries they are suffering. They played 22 days of cricket in 29 days between June 13 and July 11.
“I think the schedule definitely needs to be looked at,” insisted Radford. “The schedule has been unbelievable. It’s literally playing every day, sort of back-to-back. Players are getting tired.
“This is when you get injuries or performance starts to dip. It’s been tough for us.
“We have got a lot of injuries to the back-up players so it’s hard to rotate the squad. We have ended up playing the same players in all competitions. That is very hard for fast bowlers.
“There is very little time to work between matches as well and prepare and practise the way you would want. You are either on the motorway or playing.”