England seamer Matthew Hoggard has been left out of Yorkshire's squad to play Kent in their County Championship Division One contest as a precaution.
Hoggard has taken 240 wickets in 54 Test appearances for England
The 30-year-old is recovering from a back problem that has kept him out of the first two Tests against India.
He bowled six overs at the National Academy at Loughborugh on Monday.
But England coach Peter Moores said: "We need to get him back fully fit and sorted because if it goes again it could be a long job."
He continued: "He came down to Loughborough and was assessed and managed to bowl a bit, but his back is a bit stiff.
"We might get him to bowl at Trent Bridge [this week] so the medics can keep and eye on him and build up his work-rate.
"What has been difficult for Matthew is that what with the weather that we've had, he's not had much chance to bowl full stop."
I first felt a twinge when I was playing for Yorkshire in the Roses match at Old Trafford last week
Hoggard suffered the injury during practice at Lord's last Tuesday and struggled in a fitness test the following day.
He told the Times: "The spasm is somewhere at the base of my back just above the pelvis.
"I first felt a twinge there when I was playing for Yorkshire in the Roses match at Old Trafford last week.
"I was able to play against Warwickshire at Edgbaston and bowled 10 overs on Monday without feeling too bad."
Hoggard added the condition worsened during practice at Lord's and added: "I've now picked up three irritating niggles in the space of seven months.
"But the back spasm that has ruled me out of the Lord's Test is the most annoying of all."
Debutant Chris Tremlett took Hoggard's place in the side for the first Test and is expected to keep his place for Friday's second match in Nottingham.