Rangers’ first-half collapse saw them conclude their dismal Europa League campaign with a 3-1 defeat by Porto in the Estadio do Dragao.
Gers attacker Djeidi Gassama headed the visitors in front after just six minutes but they soon fell apart with some calamitous defending and goals from teenager Rodrigo Mora, Francisco Moura and an Emmanuel Fernandez own goal before the break left Danny Röhl's side reeling, with the Portuguese side comfortably fending off an improved Govan side after the break.
Rangers were already out of the competition before kick-off but it was a first defeat in nine games for the Ibrox side, who at times in the first half reverted back to early-season form.
The Light Blues, who drop out the competition with four points from eight league phase fixtures, return to the more encouraging environment of the Scottish Premiership on Sunday, where they face Hibernian at Easter Road hoping to at least remain four points behind leaders Hearts.
Röhl was always going to have an eye on Hibs albeit his three January signings - Denmark winger Andreas Skov Olsen, Danish midfielder Tochi Chukwuani, and Belgian left-back Tuur Rommens - were ineligible as was Nedim Bajrami.
The Gers boss made five changes with Max Aarons, Mohamed Diomande, Findlay Curtis, Gassama and Youssef Chermiti coming into the team.
Francesco Farioli's side had lost just one game in seven Euro fixtures to sit ninth and were looking for automatic qualification but home fans were soon taken aback when Curtis' cross from the right was headed down into the ground and past Portugal international keeper Diogo Costa by Gassama.
Porto, however, soon took control and in the 27th minute, when Gers defender Jayden Meghoma toe-poked the ball towards his own goal trying to clear, 18-year-old Rodrigo Mora controlled quickly and fired in from close range.
There was a VAR check for a possible Porto penalty minutes later when Fernandez left Pepe on the floor with a last-gasp tackle inside the Light Blues box but played moved on.
Rangers crumbled to lose two goals in five minutes close to the end of the half.
In the 36th minute, after skipper James Tavernier and keeper Jack Butland stumbled into each other as they tried to deal with a long ball into the box, Francisco Moura was left to flick into the net from a yard out.
An off-balance Fernandez headed into his own net from a corner in the 41st minute to add to the Gers misery.
The Govan men tried to make a fight of it in the second half with Röhl using all five substitutes, looking to Easter Road at the weekend.
In the 63rd minute Gers midfielder Nico Raskin drew a save from Costa, the corner posing no danger.
Butland then got himself in trouble wide in his own box but substitute John Souttar mopped up and there were some more near misses by Porto, who move on with Rangers bowing out.
Rangers boss Danny Röhl:
"After 20 minutes, I felt we were really in a good way. But then I think 1-1, it happens against the strong teams, it is one moment too late, it happens.
"But I'm disappointed at 2-1, too easy in this case after a 40-metre ball [into the box], then a little bit unlucky I think at the end, [3-1] it is an own goal from a set play where we know they are strong.
"In general, we played against a strong side, very experienced, good individual quality, very [well] coached, a good manager.
"But I compare this game to the Bergen game. I see a massive, massive step forward.
"It's still not good enough at the moment. We have to improve in the future, especially in this competition.
"But when I see us go to Porto, be on the front foot, try something in possession, counter-pressing, in general, I'm so proud of the development, especially in Europe, and this is where we can work on.
"I said to my players, I will not speak again about this game.
"I am fully focused now on the league. We have a mission, we have a way, and for this, we need all our energy now."
