Peter Hartley’s 94th-minute goal denied Rangers a win at Motherwell, but Steven Gerrard’s side still stretched their unbeaten record to 11 matches.
Hartley, who apologised on Friday after saying it was “fun to watch” ex-Rangers defender Fabio Cardoso “weeping” after breaking his nose against Motherwell last term, headed in a stoppage-time corner in a frantic conclusion to a gripping contest.
Gerrard’s men had trailed twice, for the first time in his tenure, to goals by Danny Johnson and Carl McHugh.
But a double from Kyle Lafferty – a volley and a header – brought the visitors level, before Ovie Ejaria had put them 3-2 ahead at the end of a stunning opening half.
The two dropped points left Rangers four points behind early Scottish Premiership frontrunners Hearts as they enter another taxing week.
Gerrard’s side take a 1-0 lead to Russia for Thursday’s second leg of their Europa League play-off tie against FC Ufa, before the first Old Firm game of the season next Sunday at Celtic Park.
Motherwell’s first league point of the season moved them off the bottom of the table.