He is known for his aggressive batting style, and previously held the record for the fastest ODI century i.e.in 37 deliveries,Now broken by Corey Anderson who took one delivery less i.e.36 deliveries which he made in his first international innings, as well as scoring 32 runs in a single over, the third highest scoring over ever in an ODI. He also holds the distinction of having hit the most number of sixes in the history of ODI cricket.Afridi considers himself a better bowler than batsman, and has taken 48 Test wickets and over 350 in ODIs. Currently Afridi is third on the list of leading wicket takers in the Twenty20F format, behind Saeed Ajmal and Umer Gul of Pakistan, taking 73 wickets from 70 matches.Shahid Afridi has signed to play for Sydney Thunder in Australias Twenty20 Big Bash league.In June 2009, Afridi took over the Twenty20 captaincy from Younus Khan, and was later appointed ODI captain for the 2010 Asia Cup. In his first match as ODI captain against Sri Lanka he scored a century however Pakistan still lost by 16 runs. He then also took over the Test captaincy but resigned after one match in charge citing lack of form and ability to play Test cricket; at the same time he announced his retirement from Tests. He retained the captaincy in limited overs form of the game and led the team in the 2011 World Cup. In May 2011, having led Pakistan in 34 ODIs, Afridi was replaced as captain. Later that month he announced his conditional retirement from international cricket in protest against his treatment by the Pakistan Cricket Board PCB. However, in October he reversed his decision. UNICEF and Pakistani authorities have taken Shahid Afridi on board for its anti polio campaign in the tribal belt of lawless Waziristan region.