Kovacevic (far left) celebrates his decisive leveller with his team-mates
By Andy Campbell
Dundee United claimed a Scottish Cup quarter-final replay after fighting back to draw with Rangers at Ibrox.
Andis Shala's cool finish put the Tangerines in front but two Kris Boyd penalties turned the match in Rangers' favour before half-time.
Nacho Novo's strike looked to have put the game beyond the visitors.
But Steven Whittaker's own goal gave United hope and Mihael Kovacevic completed the comeback with a rebound header in the 80th minute.
United were keen to avoid a repeat of their 7-1 league defeat on their last visit to Ibrox while the hosts were looking to maintain their push for a domestic treble.
The visitors were forced into an almost immediate substitution as hamstring injury victim Damian Casalinuovo was withdrawn and Shala got an early appearance off the bench.
Rangers failed to profit from mistakes by Danny Swanson and Darren Dods as Kenny Miller and Novo missed the target.
Houston 'disappointed' over penalties
And it was an error at the other end that provided the game's opening goal. Whittaker's short pass was intercepted by Daly, who slipped the ball through to Shala and the striker's calm finish beat the advancing Allan McGregor.
Miller won his side a penalty after he was adjudged to have been felled by Dusan Pernis in his attempts to round the goalkeeper.
Pernis was booked before Boyd blasted home from 12 yards on 34 minutes.
Rangers were awarded a second spot-kick a couple of minutes before the break when referee Dougie McDonald penalised Sean Dillon for a nudge on Boyd, who once again converted.
Craig Conway clipped the top of the Rangers crossbar in the opening minutes of the second half after catching a first-time shot from a throw-in sweetly.
But United were the victims of their own undoing as Swanson conceded possession and Steven Davis was allowed to drive at the visiting defence.
McCoist unhappy to let lead slip
Davis picked out Novo on the right and Garry Kenneth could not prevent the Spaniard's shot finding the net.
Boyd was denied a hat-trick when Pernis held the striker's header before Shala nodded beyond the far post for United.
Dundee United got themselves back into the match on 63 minutes when Morgaro Gomis' volley was diverted past McGregor by the head of Whittaker.
And parity was restored as Shala's header from Conway's corner struck the crossbar and Kovacevic nodded home from the rebound.
Novo sliced a shot wide as Rangers were forced to accept a third successive Scottish Cup replay, which is due to take place at Tannadice on the evening of Wednesday 24 March.
41:59 Sean Dillon challenges Kris Boyd unfairly and gives away a Penalty.
40:36 Free kick awarded for a foul by Lee McCulloch on Craig Conway. Dusan Pernis takes the free kick.
40:30 The ball is delivered by Kevin Thomson, Darren Dods makes a clearance.
39:54 The ball is sent over by Steven Whittaker.
39:29 Steven Whittaker takes a shot. Blocked by Sean Dillon.
37:04 The offside flag is raised against Kris Boyd. Dusan Pernis takes the free kick.
35:38 Daniel Swanson gives away a free kick for an unfair challenge on Kenny Miller. Kevin Thomson takes the direct free kick.
35:12 The ball is sent over by Andis Shala, clearance by Danny Wilson.
34:08 Foul by Daniel Swanson on Nacho Novo, free kick awarded. Free kick crossed right-footed by Kevin Thomson from left wing, Darren
Dods makes a clearance.
33:19 Kenny Miller provided the assist for the goal.
33:19 GOAL - Kris Boyd:Rangers 1 - 1 Dundee Utd Power penalty scored by Kris Boyd. Rangers 1-1 Dundee Utd.
32:37 Booking Dusan Pernis is given a yellow card.
32:21 Dusan Pernis gives away a Penalty for an unfair challenge on Kenny Miller.
30:50 Kenny Miller fouled by Garry Kenneth, the ref awards a free kick. The free kick is delivered right-footed by Steven Davis
from left channel.
30:09 Lee McCulloch takes a shot. Garry Kenneth gets a block in.
28:52 Kevin Thomson gives away a free kick for an unfair challenge on Andis Shala. Free kick taken by Craig Conway.
28:03 The ball is sent over by Sasa Papac.
26:30 Corner from the left by-line taken by Craig Conway, Allan McGregor makes a save.
26:23 The ball is crossed by Craig Conway, Kevin Thomson gets a block in.
25:24 Craig Conway delivers the ball.
Correction - 24:50 Header from close range by Kenny Miller misses to the right of the target.
24:50 Kris Boyd produces a header from deep inside the six-yard box which goes wide of the right-hand upright.
24:29 Nacho Novo takes a inswinging corner from the left by-line played to the near post, clearance made by Mihael Kovacevic.
24:23 Steven Whittaker sends in a cross, Mihael Kovacevic makes a clearance.
23:06 The assist for the goal came from Jon Daly.
23:06 GOAL - Andis Shala:Rangers 0 - 1 Dundee Utd Andis Shala grabs a goal from inside the penalty box low into the middle of the goal. Rangers 0-1 Dundee Utd.
21:52 Kris Boyd challenges Darren Dods unfairly and gives away a free kick. Direct free kick taken by Darren Dods.
20:48 Kenny Miller produces a right-footed shot from the edge of the area and misses to the left of the target.
18:11 Outswinging corner taken by Craig Conway, Headed effort from inside the area by Garry Kenneth misses to the left of the target.
17:55 Andis Shala takes a shot. Steven Whittaker gets a block in.
14:41 Kevin Thomson concedes a free kick for a foul on Andis Shala. Morgaro Gomis takes the direct free kick.
11:25 Corner taken right-footed by Craig Conway from the left by-line to the near post, clearance made by David Weir.
10:28 Nacho Novo has a headed effort at goal from deep inside the area missing to the right of the goal.
9:32 Morgaro Gomis fouled by Lee McCulloch, the ref awards a free kick. The free kick is swung in right-footed by Craig Conway,
save by Allan McGregor.
7:45 Effort by Steven Whittaker from a long way out goes over the crossbar.
7:36 Steven Davis produces a cross, Dusan Pernis makes a save.
6:08 Steven Whittaker gives away a free kick for an unfair challenge on Craig Conway. Craig Conway crosses the ball from the free
kick right-footed from left wing, Steven Whittaker manages to make a clearance.
5:47 Unfair challenge on Morgaro Gomis by Sasa Papac results in a free kick. Direct free kick taken by Morgaro Gomis.
5:33 Steven Davis takes a shot. Garry Kenneth gets a block in.
5:15 Corner taken by Kevin Thomson, Garry Kenneth makes a clearance.
5:07 A cross is delivered by Kevin Thomson, Daniel Swanson gets a block in.
4:24 Corner taken left-footed by Kevin Thomson, Nacho Novo takes a shot.
4:18 The ball is crossed by Nacho Novo, clearance made by Garry Kenneth.
3:10 Sasa Papac produces a cross, clearance by Garry Kenneth.
2:37 Sasa Papac takes the direct free kick.
2:37 Substitution (Dundee Utd) makes a substitution, with Andis Shala coming on for Damian Casalinuovo.
2:37 Unfair challenge on Sasa Papac by Daniel Swanson results in a free kick.
0:14 The ball is crossed by Kenny Miller, clearance by Darren Dods.
0:00 The game begins.
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