Dhananjaya de Silva and Kusal Mendis batted through more than two sessions on the third day, bringing the deficit down to 30 runs with six wickets still in hand for Sri Lanka
Morris had surgery to repair a cut on his left hand that he sustained when he slipped and fell on glass at his engagement party at his parents' house on Saturday night
Both Devon Conway and Rachin Ravindra, as well as Tom Blundell, are recovering from injuries and are aiming to be fit to play the first Test in Wellington