Philippe Clement has confirmed Ryan Jack picked up an injury in Rangers’ midweek clash with Benfica as he updated the press on Dujon Sterling and Ross McCausland. The Rangers manager was speaking after the club’s Scottish Cup victory over Hibs, where goals from John Lundstram and Fabio Silva secured the points. But the match was overshadowed by injuries to Dujon Sterling, who was subbed off for Ross McCausland in the first half, before the Northern Irishman made way himself in the second period. The Rangers boss was also asked about Ryan Jack picking up a new injury, in a major blow to the mid…