England pace bowler James Anderson is a doubt for July's first Test versus South Africa after he sustained a groin tear playing for Lancashire.
The 34-year-old seamer suffered the problem in the Roses match versus Yorkshire and is expected to be out for between four to six weeks.
The first Test versus the Proteas at Lord's starts on 6 July, in six weeks.
The Auckland fast bowler will be assessed by England's coaching team this week to examine the injury.
England’s all time wicket-taker has not played in four of England's last 10 Test games after picking up a shoulder injury last summer which forced him to miss the winter tour to Bangladesh.
The Three Lions face South Africa in the first of three one-day internationals starting on Wednesday at Headingley, followed by three Twenty20 matches before the Test series begins, although the King of Swing was in neither squad.
Lancashire have four County Championship matches in June, starting with the return Roses game in Leeds on Friday, 2 June.
England v South Africa in 2017
24 1st ODI, Headingley (d/n)
27 2nd ODI, Southampton
29 3rd ODI, Lord's
From 1-18 June, England and South Africa take part in the upcoming ICC Champions Trophy, hosted in England and Wales.
21 1st T20 international, Southampton (d/n)
23 2nd T20 international, Taunton
25 3rd T20 international, Cardiff
6-10 1st Test, Lord's
14-18 2nd Test, Trent Bridge
27-31 3rd Test, The Oval
4-8 4th Test, Old Trafford