SPL review:John Fleck netted his first goal for Rangers as they beat Dundee United 2-0 to move within a point of leaders Celtic in the Scottish Premier League. The teenager won, and then converted, a second-half penalty before Kyle Lafferty sealed the win in injury time.
The previous meetings between the clubs had both ended in draws but United were forced to return to Tannadice empty-handed this time as Rangers piled the pressure on Celtic ahead of their trip to Inverness.
Elsewhere, Simon Mensing scored both goals as Hamilton recorded their first-ever top-flight victory over Hearts to move up to eighth.
Jambos owner Vladimir Romanov joined the New Douglas Park crowd to take in his first Hearts game since November 2007, but his side offered little attacking threat as Accies completed a perfect January with their fifth win.
Mensing opened the scoring 11 minutes in after converting a Brian Easton corner and then made it four goals in as many games with a penalty early in the second half after Robbie Neilson brought down James McCarthy.
Michael Higdon's second-half strike gave Falkirk a vital three points in their bid to ease themselves away from relegation trouble as they beat Aberdeen 1-0.
The former Crewe striker latched on to a pass from strike partner Steve Lovell 10 minutes after the break to net the only goal of the game and stretch the Bairns' gap over bottom side Inverness to five points.
The defeat brought to an end a run of only one defeat in nine games for Aberdeen, whose best chances fell to skipper Scott Severin on an afternoon of frustration in front of goal.
Motherwell striker David Clarkson rescued a deserved point to cancel out Derek Riordan's opener for Hibernian in a 1-1 draw.
Clarkson converted a penalty with 15 minutes remaining following substitute Steven Thicot's foul on Jamie Murphy.
Hibs had taken the lead in the eighth minute when Riordan found the net with a composed finish from 10 yards from Ross Chisholm's cut-back.
In the day's early game, Dennis Wyness came off the bench to rescue a 1-1 draw for St Mirren after Kilmarnock's Kevin Kyle had threatened to upstage the Paisley club's first game at their new stadium.
Kyle headed home on his Clydesdale Bank Premier League debut and it looked like his would be the only bright new start after Alan Combe saved Jim Hamilton's penalty.
But Wyness grabbed a late equaliser after a mistake by Combe, who had controversially escaped a red card for hauling down Dargo earlier in the game.