It's big one domestically this weekend but there's the small matter of the Europa League last 16 before derby fever sets in.Celtic don't have to concern themselves with the latter but Rangers face their toughest test yet when Bayer Leverkusen come calling just days before their rivals rock up to Ibrox on Sunday.
A win over the Bundesliga big boys would set Steven Gerrard 's side up perfectly for the weekend showdown - although not many are giving them a chance. Gordon Ashley, Ayr doesn't think the Gers gave faced the same quality Celtic have on the continent this season.
He said: "Rangers have only played teams from the diddy leagues in Europe so far, lets see if they can take on and beat a team from one of Europe's big five like Celtic
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