David Warner, the former Australian opener, has revealed that he worked really hard to keep himself motivated and fit after retiring from the Indian Premier League (IPL) two years ago, as he reaches Pakistan and gets ready to captain the Karachi Kings in the Pakistan Super League (PSL), a news report said on Wednesday. 

The 39-year-old Warner, who has represented Sunrisers Hyderabad and Delhi Capitals in a stellar 15-season career in the IPL before joining the neighbouring League last year, quit international cricket a few years back. He had to endure some tough times because of poor form in IPL, lost his captaincy, and was not retained by his franchise.