Sunderland have secured New Zealand U20 international defender Jack Pelter to a short-term contract.

Pelter has agreed a month-long deal while the Black Cats check on his fitness in preparation for what is expected to be an offer of a one-year deal.

The 20-year-old currently has an ankle injury which Sunderland are monitoring before committing themselves to a longer contract.

Having tied up the deal, manager Roy Keane said: "Jack has done well since coming to the club but he has a slight injury and we're looking at that.