England are monitoring Stuart Broad's fitness in the build-up to the first Test against South Africa after the pace bowler suffered a heel injury.
Broad left the field on Wednesday after bowling one over for Nottinghamshire in their win against Leicestershire.
The 30-year-old is reported to have had a scan on his left heel after the game.
Fellow bowlers Chris Woakes, Ben Stokes and James Anderson are already doubts for the first of the three-Test series at Lord's from 6 July.
"Stuart had a bit of pain in his heel, he's had it for a while," said Nottinghamshire coach Peter Moores.
"If the situation had been different, he could have pushed on through it but there was no need to, so he came off and we'll monitor it and look after him."