“We should have a better idea of the situation tomorrow,” Moosajee, South Africa’s team manager told ESPNcricinfo.
“We need a 24-hour period before we can determine exactly what’s wrong.”
South Africa’s vice-captain AB de Villiers also confirmed Steyn’s fitness problems.
“He [Steyn] did tweak something in the fielding practice yesterday, but we think it’s not too serious, so we are just taking a good precaution and making sure he will be ready for the second test match,” said De Villiers on Monday.
Steyn, ranked number one bowler in Test rankings, took three for 88 in Pakistan‘s first innings of the Abu Dhabi Test and then grabbed one more in the second when Pakistan needed just 40 for the win.
South Africa will also likely to miss first Test centurion Hashim Amla who returned home last week to be with his wife for the birth of their second child.