Aubameyang's reward for returning Barcelona to Champions League could be getting replaced by Haaland

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Aubameyang scores three as Barcelona thrashes Valencia (1:48)

Barcelona's nearest LaLiga rivals -- Real Betis, Atletico Madrid, Villarreal, Real Sociedad and their next opponents at Camp Nou, Athletic Club -- will be roaring Xavi's team on to victory in Naples on Thursday.

The Europa League, which they are in danger of exiting after only managing a 1-1 draw with Napoli in the first leg of their playoff to reach the knockout phase, isn't merely Barcelona's last opportunity of a trophy this season -- it's also a route into the fabulous wealth of next season's Champions League. That's pretty important when your debt is piled as high as theirs.

There's a brilliant battle for the top four in Spain right now, with fourth and eighth separated by just five points, so if Napoli send Barcelona into the ignominy of exiting European competition by late February, the Camp Nou side will obviously need to fight tooth and nail for the remainder of the domestic season if they want a top-four slot. That would mean extra menace for Betis, Atleti, Villarreal, Real Sociedad and Athletic (stream LIVE Sunday at 2:50 p.m. ET on ESPN+ in the U.S.). If Barcelona pull off a big result, though, there will arguably be a distraction to their domestic efforts: more matches, more chances of players being tired or injured. At face value, it's what their LaLiga rivals would want.

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You'd also doubt that Pierre-Emerick Aubameyang feels any dilemma on the subject of whether it's preferable for him and Barcelona to progress, but perhaps he should anticipate that there's a conflict of interest. The Gabon international -- who's just become the first player this century to score a hat trick in Ligue 1, the Bundesliga, the Premier League and LaLiga -- is at Barcelona because his new manager, one of the guys who saw Mikel Arteta off the premises back in 2002, has a different temperament to the Arsenal boss.

Xavi also has very different, much more urgent needs, including signing a guy who's often declared that he promised his grandfather he'd one day sign for Real Madrid. Now here he is in Blaugrana. Aubameyang's performance in Barcelona's 4-1 win at Valencia (stream the replay on ESPN+ in the U.S.), plus flashes of connection with Ferran Torres against Napoli last week, mark him down as the guy most likely to do damage to Luciano Spalletti's Serie A title challengers. Whether it's wholly in his interests to do so is a moot point.

Barcelona -- especially their president, Joan Laporta -- are incredibly serious about signing Borussia Dortmund striker Erling Haaland this summer. Madrid want both the Norwegian and Kylian Mbappe, but the Paris Saint-Germain No. 7 is their priority. What's being sold to Haaland, with all the power that Laporta can muster, is that he's better off opposing Madrid's Mbappe era than joining it. If Haaland joins it, there's the possibility of having to be behind France's World Cup winner in the pecking order. That's the spiel, at least.

Laporta has such a superfluity of charm, when he wants to, that if it were an energy source you could probably do away with oil, natural gas and wind power. He's using all that fizzing energy to sell this phenomenal striker the dream of leading Barcelona's "underdog" charge against Mbappe-powered Madrid for the next several seasons in a re-modelled version of the rivalry between Lionel Messi and Cristiano Ronaldo that we've all just had the pleasure of living through -- or forced upon us, depending on your view. For an ambitious, independent-minded kid like Haaland, it's a tempting prospect, I guess. You'll be second fiddle to Mbappe when you go there, Barcelona will be whispering in the Dortmund star's ear. They want him much more than they want you, is the unease they're trying to plant in the Norwegian's head. We'll pay you as much as they will. And there's the rub.

It must have been brutally disheartening, even for Laporta's industrial-rubber confidence, to see LaLiga president Javier Tebas state that "Madrid will get Mbappe and Haaland" on the basis that he believes Barcelona's finances can't compete. What's certain is that if Aubameyang's goals don't fire the Blaugrana to win the Europa League or into the top four by May, then not only will they not have the finances to sign Haaland, the Norwegian simply won't join them if they ain't playing top-table football next season.

If Haaland comes then, let's not beat about the bush: He's playing leading the line. In a 4-3-3. No twin centre-forwards. Aubameyang, who's has a contract at Camp Nou for at least another season, potentially with a second full campaign to follow, will be shunted to the wing -- or the bench. What a repayment that would be. Should the ex-Dortmund striker deliver the goods, having hit the absolute nadir of his career at Arsenal, it'll be one hell of a story. The reward for which would be having his position taken away.

It's already been interesting to watch Aubameyang's mini-renaissance at Camp Nou. Right now, nobody in Spain is talking about the fact that, in essence, he was sacked by Arsenal. Perhaps his exit was not as blunt as that in pure legal terms, but he was stripped of the captaincy, dropped from the squad, left behind when the Gunners went to their winter training camp and then allowed to leave for free. Draw your own conclusions. OK, Aubameyang couldn't get to LaLiga quickly enough because this was a move he absolutely cherished. But from the moment Arteta gave up on the Gabon star until he snuck under the finishing tape on transfer deadline day it was, in modern terms, ultra fast. Like him, in fact.