Doncaster Rovers have agreed a deal with Manchester United to extend Sam Johnstone's loan deal for the rest of the season.

Johnstone has featured in 11 matches for the Yorkshire club and has been getting rave reviews from the coaching staff at the Keepmoat Stadium.

"He's had a good bit of experience out on loan and the feedback has been really good from Sam as well," United Reserves coach Warren Joyce told his club's official website.

"It's a good test and a good challenge for him. He looks like a commanding figure at Championship level."

Johnstone is likely to retain his place as Rovers host Birmingham City on Saturday.