Rangers boss Stuart McCall says he feels sorry for Gael Bigirimana, but admits he should never have been signed.
Chris Gunter will stay at Reading, after the club took up the option to extend his deal by another year.
The 20-year-old has yet to make a first-team appearance for the Premier League outfit but he has experience of playing in the Football League.
He turned out 14 times for Tranmere during his loan spell at Prenton Park in the 2012/13 campaign, scoring one goal.
The youngster also scored once while on loan at Gillingham last season, where he made three appearances.