Visiting side slips to 59/4 in pursuit of 438 on fourth day after Younis, Shehzad score centuries   Yasir Shah, the debutant legspinner, and Zulfiqar Babar, the left-arm spinner, helped Pakistan take a giant leap towards securing 1-0 lead in the two-Test series against Australia in Dubai on Saturday (October 25). Chasing an imposing