New Zealand‘s victory chances were further bolstered at tea on day four of the second Test against Sri Lanka in Christchurch when the tourists’ in-form batsman Angelo Mathews retired hurt.

Mathews was to go to hospital for a scan after suffering a suspected torn hamstring about 10 minutes before the tea break.

He was replaced by Roshen Silva after the interval with Sri Lanka effectively four down for 155 after being set an improbable target of 660.

If Mathews is unable to resume batting later in the innings it would leave Sri Lanka with only six wickets for the last four sessions of the Test.

Mathews, who produced innings of 83 and an unbeaten 120 in the drawn first Test in Wellington, was 33 not out in their first innings of the second Test.

He was on 22 in the second innings when he pulled up lame at the end of a run and afterwards could only hobble between the wickets.