Giles White remains hopeful t20 skipper Dimi Mascarenhas will be fit to lead the side this week.
The former England star suffered a back spasm in the Yorkshire Bank 40 loss at Durham and was unable to bowl.
But it was a double whammy for White’s side after Michael Carberry suffered a painful blow on the thumb that required an X-ray.
Carberry should be okay for the Friends Life t20 curtain-raiser against Surrey, with no fracture reported.
It remains to be seen whether Mascarenhas will be back in time for the Ageas Bowl showdown, though.
Hampshire manager White said: ‘He had a back spasm and wasn’t able to bowl, which didn’t help us.
‘We’re hopeful he will be okay for Wednesday but we are unsure at this stage.
‘We will see how he pulls up and will monitor him over the next couple of days.
‘Dimi is pretty resilient. He has had these issues before and generally comes through them so fingers crossed.
‘Back spasms can come and go, so it’s difficult to put a time frame on them.
‘Michael Carberry got one on the thumb. He had an X-ray and it’s not broken, which is good, but it’s pretty swollen. Hopefully, he will be okay.’
It’s certainly a worry for White ahead of a hectic run of fixtures in the shortest form of the game.
But Hampshire must now switch their focus from the 40-over competition after reaching the midway point with a disappointing display.
White said: ‘It’s been a long trip to come away with no points.
‘You have days like that in a season but hopefully we have got that out of the way now and can bounce back next time we are in this competition, which is in August.
‘It’s not the end of the world. We are halfway through the competition and we are disappointed but we have to go dust ourselves off and go again.
‘We’ve got the Friends Life t20 title to defend this week.’
White added: ‘There were a couple of expensive drops and it’s unlike the group to drop those kind of catches.
‘Generally our fielding is very good but it wasn’t to the high standards we set ourselves this time.’