Can embattled Rangers or Celtic make a Europa League statement?

What can struggling Rangers and stop-start Celtic expect in Europe?Can Russell Martin keep ‘turning the tanker around’ with a win against Sturm Graz? Will Brendan Rodgers get his side to click against bold Braga?Will the Rangers boss “set aside his football philosophy” in search of a win? And what does it mean for Celtic that fan protests have been called off?