RANGERS face an anxious wait to discover the extent of an injury sustained by Ryan Jack after the midfielder underwent a check-up on Monday.

SportTimes can reveal the 27-year-old has been given a protective boot to wear following a hospital visit for assessment on a foot injury.

But it is not yet clear how severe the problem is or how long the Scotland international will be out of action for as Rangers continue to monitor one of their most important and consistent performers.

Jack played the full 90 minutes of the Light Blues’ Scottish Cup draw with Aberdeen on Sunday as Steven Gerrard’s side came from behind to secure a quarter-final replay against the Dons.

The former Pittodrie captain has been an integral part of Gerrard’s plans this season and was rewarded with a new contract in December that will keep him at Ibrox until 2021.

The loss of Jack would be a huge blow to Rangers as they attempt to challenge Old Firm rivals Celtic in the Premiership and reduce their eight-point deficit in the title race.

Gerrard has also set his sights on Scottish Cup success this season as he looks to end his first campaign in the Ibrox dugout with a winner’s medal and the Gers will face Derek McInnes' side in their last eight replay next Tuesday.

Rangers return to league action on Friday night when they make the trip to Easter Road to face sixth-placed Hibernian.