Pakistan have added batsman Younis Khan to their squad for the second Test against West Indies in Abu Dhabi, which starts from October 21. Younis' inclusion is the only change to the squad for the ongoing series. Younis had missed the first Test after being advised extended rest as he recovered from a bout of dengue. The 38-year-old batsman had contracted a high fever last month that was later diagnosed as the mosquito-borne disease, as he underwent treatment at a Karachi hospital. The illness also forced him out of the first round of the Quaid-e-Azam Trophy, Pakistan's premier first-class tournament. Younis is Pakistan's leading run-scorer in Tests with 9456 runs at 53.72. Before the Dubai Test, he had last missed a Test in May 2011, and had since played 41 successive matches, scoring 3839 runs at an average of 59.06. He scored 218 against England at The Oval in his last Test appearance.