Pakistan's Mohammad Amir (L) bowls during a practice session at Lord's Cricket Ground in London on May 23, 2018, on the eve of the first Test match between England and Pakistan. / AFP / Adrian DENNIS
Pakistan's Mohammad Amir (L) bowls during a practice session at Lord's Cricket Ground in London on May 23, 2018, on the eve of the first Test match between England and Pakistan. / AFP / Adrian DENNIS

Cricket World Cup: Pakistan leave Mohammed Amir out of preliminary squad over performance issues