New Delhi: The Delhi Daredevils on Tuesday suffered a setback ahead of their IPL season as flamboyant batsman Shreyas Iyer has been ruled out for at least a week due to chicken pox. Iyer is now back in Mumbai recuperating from illness and is expected to join the squad after getting fully fit. It may take around a week before he starts training again. Iyer’s absence during the first week is a big worry for the perennial underachievers with two of their biggest overseas recruits Quinton de Kock and JP Duminy already out of the tournament. Angelo Mathews is also out for a better part of the cash-rich event. The swashbuckling Iyer was a big hit for the franchise during the 2015 edition while 2016 was not that great.