Knox is one of the subs.
ETA - from Matt Elder's updates:
Rovers start the second half with five new faces - Mendy, Benedictus, Matthews, Knox and one of the unknown trialists wearing 24 replace Davidson, McKay, Hendry, Victoria and Allan.
Thoughts on him?
He was okay I suppose but he was out for quite some time after breaking his jaw and hand in a bounce game. All told he didn't play that many games for us so hard to judge.