Rangers fans know better than most football fans of clubs still in the Europa League, or any other UEFA competition for that matter, about what the rules and regulations are for squad sizes. A bizarre decision from Michael Beale and negligence over several transfer windows sees current Gers boss Philippe Clement with a squad full of academy players – he was clearly not happy about having to change formation against Sparta Prague. The Rangers manager has brought a few new faces into Ibrox for the second half of the campaign but who has made it into his Europa League squad? Rangers players learn…