England batsman Jason Roy will miss the T20 series with Pakistan after sustaining a left side strain.
The 30-year-old Surrey top-order batsman was injured during training for the three-match series, which starts at Old Trafford on Friday.
He had a scan on Wednesday and will remain with the England set-up during his rehabilitation programme.
England also play Australia in three T20's followed by three one-day internationals from 4-16 September.
Roy has scored nine ODI hundreds and 18 fifties in 90 ODI's - plus five fifties in 35 T20's - but has had a lean run this summer.
After a first-ball dismissal against Ireland last month he made 24 in the first of the three-match ODI series against the same opposition, but only two more runs in the remaining two matches.
The attacking batsman, who has hit 113 international sixes, scored only 4 and 14 batting in the middle order for Surrey against Hampshire in the Bob Willis Trophy earlier this month.