Unbelievable mistake: How was this not out?

Pakistan wicketkeeper Adnan Akmal attempts to run out Kosala Kulasekara of Sri Lanka.

The Pakistani third umpire made a huge mistake in not giving debutatant Kulasekera run out as the replay clearly suggests.

Ramiz Raja and Russell Arnold analyse the days play.

3rd Test, Day 4, Sharjah, Nov 2011