"DSEG confirms that our client Justin Langer has this morning tendered his resignation as of the Australian men's cricket team," the statement said, as reported by ESPNcricinfo.
Paine's captaincy has been questioned after he launched an ugly verbal tirade at India's Ravi Ashwin and Smith was accused of foul play after appearing to scuff up batsman Rishabh Pant's guard at the crease
