Rangers missed the opportunity to move level on points with leaders Celtic at the summit of the Clydesdale Bank Premier League, although they survived the dismissal of Lee McCulloch to earn a hard-fought draw with Aberdeen.
Rangers struck first when McCulloch crossed for Charlie Adam to score from close range, but the creator of that goal was then sent off for kicking out at Scott Severin as tempers boiled over following Chris Clark's crude challenge on Alan Hutton.
Aberdeen restored parity with the final play of the opening period when Lee Miller pounced after Allan McGregor could not gather Richie Byrne's cross, leaving Rangers two points behind Celtic, albeit with two games in hand.
Yesterday, leaders Celtic needed a late goal from substitute Jiri Jarosik to salvage a 1-1 home draw with managerless Hibernian in the Scottish Premier League on Saturday.
John Collins quit as manager of Hibernian on Thursday, citing a lack of resources, but the visitors surprised the champions in the 20th minute when David Murphy scored with a fierce shot that went in off the underside of the bar.
Jarosik replaced Italian midfielder Massimo Donati after 64 minutes and the Czech sidefooted the equaliser 14 minutes later from a cross by Jan Vennegoor of Hesselink.
Celtic have 37 points from 18 matches, three clear of Rangers who play one of their three games in hand at Aberdeen on Sunday.
Elsewhere, Hearts lost 3-2 at home to Inverness Caledonian Thistle after a late goal by Graham Bayne.
Hearts had Lithuanian keeper Eduardas Kurskis sent off with three minutes left for a second bookable offence.
Motherwell crashed 3-0 at home to Falkirk while St Mirren drew 0-0 with Kilmarnock and bottom club Gretna won 2-1 at Dundee United.