England fast bowler Chris Tremlett is to miss the rest of England's tour to the United Arab Emirates because of a back injury.
Tremlett was forced to miss Tuesday's training session after suffering a recurrence of pain in his back and side.
The 30-year-old had only just returned to the England side after a similar injury had kept him out of the England reckoning for five-and-a-half months.
Although Tremlett had finished wicketless during the 10-wicket rout by Pakistan in the first Test, he had been expected to keep his place in the side for the second match at the Zyed Cricket Stadium.
England will now call up a replacement for Tremlett ahead of the final Test of the series.