Halls will stay on loan until after the play-offs (Getty Images)

Sheffield United have extended Reading defender John Halls' loan spell until the end of the season.

The 26-year-old has made two starts and a substitute appearance since joining Kevin Blackwell's side from the Madejski Stadium last month.

Halls has previous Championship experience with loans to Preston and Crystal Palace after struggling to secure first-team games.

He will remain with United until after the Championship play-offs.

The Blades currently occupy 12th place in the Championship, five points off the last play-off place and manager Kevin Blackwell has yet to rule out a play-off finish for the Blades.