Left-handed batter Tamim Iqbal has decided to step down as Bangladesh ODI captain after a recurring back injury ruled him out of the upcoming Asia Cup. The continental ODI tournament will be held in Pakistan and Sri Lanka from August 31 to September 2. The 34-year-old, who had announced his shock retirement from ODIs during the home series against Afghanistan before withdrawing his decision, will be eyeing the rubber against visiting New Zealand to get back into reckoning for the World Cup in India.