New Zealand paceman Trent Boult is in doubt for the second Test against England due to a rib problem.

Boult was forced from the field on day five of the opening Test in Mount Maunganui on Monday after experiencing pain in the right side of his ribs.

The experienced Black Caps quick will undergo an MRI scan on Tuesday.

Boult had figures of 0-6 in the second innings at Bay Oval, where the 30-year-old claimed 1-97 in England's first innings.

The second Test gets underway in Hamilton on Friday.