"It is basically an old problem for him and he has had to follow certain exercises to keep fit. But travelling is a major source of discomfort for him and it accentuates the back problem," PCB Chairman Shaharyar Khan told Reuters on Tuesday.

"One option we are studying is sending Inzamam abroad to consult specialists."

Inzamam missed the third and final Test against India after the injury flared up in the drawn second Test.