South Australia coach Darren Berry believes fast bowler Kane Richardson's change in bowling action may be at fault for the back injury he sustained in Australia A's 122-run victory over the England Lions in Hobart on Monday.
The towering quick spoke to Berry on Tuesday night and said he felt soreness developing in his back while bowling in the huge win before aggravating the complaint after diving for a ball in the field.
Richardson, who made his Australian one-day debut in mid-January against Sri Lanka, was ousted from the bowling attack for an illegal follow-through during the limited-overs encounter.
The 22-year-old underwent remedial work with Berry and Redbacks bowling coach Rob Cassell to rectify his approach.
Berry said there were always concerns that the adjustment to Richardson's bowling mechanics could be damaging to his body.
"Whenever a young body changes what the biomechanics have been doing for a long period there is a risk (of injury) ... we knew the dangers of it," Berry said.
"But we had to change his action, we were worried about it.
"Whether that is the direct correlation (to the back injury) ... probably, but we don't absolutely know.
"He's never had major issues (with his back) as far as I'm aware and I believe that the change in his action and approach used different muscle groups.
"The good news is, is that he's had scans and it's not a stress fracture and as dire as we thought.
"He's got a hot spot and we need to assess how long that it is (going to keep him out)."
Richardson is likely to play no further part in Australia A's five-match series with the England Lions in Hobart and Sydney.
The paceman may also be wrapped in cotton wool until the end of the domestic summer to avoid further damage.
Berry hopes to avoid that scenario and have Richardson back in time for South Australia's last four-day contest of the season against New South Wales in March, but said his speedster's health would come first.
"It's a concern because he's a young man on the up and we certainly don't want to bury him, but if it's at all possible to get him back for the backend (of the competition), I'll certainly be looking at it because it's a crucial time," Berry said.
"I've got to take on the medical advice, but I'm going speak to a few people this week and consult as to the best way to manage him.
"I'll speak to the experts on whether the best thing is to just put the cue in the rack or whether it is to try and get something out of it.
"First and foremost though, it will be his welfare for the long term that's the most important."
To add to the costly loss of Richardson, fellow Redbacks quick Chadd Sayers had to leave the ground in SA's Sheffield Shield clash with NSW at Adelaide Oval on Wednesday.
Sayers bowled nine overs and took 3-19 before he grimaced with pain upon taking the vital wicket of Blues veteran Brad Haddin during his second spell late on day two.
Sayers, who is the leading wicket-taker in Shield cricket, has a side strain and will undergo scans on Thursday.
The 25-year-old is expected to be unable to bowl again in the match.
Unlike Richardson, Berry had high hopes that Sayers' injury was only minor.
"We are certainly not writing Chadd off at this point ... but he's unlikely to bowl on Thursday," Berry said.
"He's got one of those side strains and Chadd Sayers being Chadd Sayers, felt it when he came back for that second spell and got the huge wicket of Brad Haddin ... then he was just cooked.
"It's not dire, they're (medical team) not saying he's stuffed, and even Chadd is doing side movements and not lying on the bed gone, but he definitely said it was hurting to the point where he was worried he would do something major.
"He feels as if he got off before he's done anything major."
Berry admitted his bowling depth would be tested given the injuries to Richardson and Sayers, but said their absences would provide opportunities to the likes of Peter George, Jake Haberfield and Carl Tietjens to step in and become a 'frontline quick'.
First Posted 21 February, 2013 10:27AM AEST