England may have to make do without pace-bowler James Anderson for their first Test match against South Africa in Durban, which is due to get underway on Boxing Day.
The 33-year-old, who is England's leading Test wicket-taker of all time, has been sent for a scan on the calf injury that has limited the amount of bowling he has been able to do on the tour so far.
"It's a concern. He hasn't been able to bowl a lot of overs on this tour. He has bowled overs, though, so whatever it is it's not a terribly bad one," head coach Trevor Bayliss told reporters.
With Stuart Broad almost guaranteed of his place in the team, were Anderson to miss out, it is likely to be between Chris Woakes, Steven Finn, Chris Jordan or Mark Footitt to join the pace attack.
