Borussia Dortmund's New Greek Stars Shine in Bundesliga Opener

Borussia Dortmund wanted a spark on the Bundesliga’s opening weekend. Two young Greeks lit the place up.

Giannis Konstantelias and Konstantinos Karetsas turned Signal Iduna Park into a stage again in the 2-0 win over Hamburger SV, giving Niko Kovac exactly what he had promised before a ball was kicked: a different dimension.

"These are two lads who can and will give us a different dimension here, and they showed that today," Kovac told Sky after the game. He had trailed it in the build-up, too: technically gifted players, capable of the spectacular, but always in service of the team. On Saturday night, that vision came to life.

A new kind of No. 10

Dortmund have lost Julian Brandt to Ajax, but they may already have found an upgrade in terms of pure impact between the lines. Konstantelias and Karetsas, both arriving from smaller European leagues, can do almost everything Brandt could. Then they add something extra.

They explode from a standing start. They punch holes where there are none. In tight spaces, between the opposition’s lines, they don’t just keep the game ticking – they ignite it. More proactive, more vertical, more ruthless in turning half-moments into full-blown danger.

Against HSV, that quality was obvious from the first whistle. The first 45 minutes were a blur of black-and-yellow movement, with the two Greeks constantly rotating, dropping into pockets, then driving forward. Karetsas and Konstantelias repeatedly took the ball on the half-turn and went straight at Hamburg.

Konstantelias had already flashed his talent in the Super Cup defeat to Bayern Munich. This time he went a step further. His close control at top speed, the way he glides past opponents, the sharp changes of direction – all of it drew gasps from the stands. He didn’t just entertain with the ball either. Around the half-hour mark, he snapped into a tackle in midfield, won the ball, and the stadium roared as if he had scored.

Minutes later, he did.

Just before the break, Konstantelias made it 2-0, marking his Bundesliga debut with his first BVB goal. The shot took a deflection off a Hamburg defender, but the idea was all his: a no-look effort aimed at the near corner, full of confidence and invention. "First half top, it was perfect. We implemented everything we wanted to implement," defensive leader Waldemar Anton said on Sky, purring over Dortmund’s display.

Barely 100 minutes into his BVB career, Konstantelias already looked like a future cult hero.

From euphoria to fear

Early in the second half, chasing a second goal for himself, Konstantelias overstretched in a duel and his knee appeared to give way. He stayed down. The noise inside Signal Iduna Park changed in an instant.

He left the pitch in the 54th minute, his expression telling its own story. This did not look like a knock you run off.

"Of course, we should be a little bit careful today about what we communicate. But we are certainly concerned about a more serious injury," sporting director Ole Book said on Sky. Asked directly about the possibility of a cruciate ligament tear, he admitted: "That concern is there."

Kovac did not sugarcoat it either. "We will have the examination on Sunday. But at least it doesn't sound good from what the doctor told me," the coach said afterwards.

If the detailed tests confirm those fears and Konstantelias is ruled out for months, Dortmund lose not just a new signing, but the man who had already begun to reshape their attack. The 26-million-euro midfielder has shown in no time how much sharper and less predictable BVB become with him on the pitch. Without him, the difference was stark.

Hamburg improved after the break, but it was not only their adjustment that tilted the game. With Konstantelias gone, Dortmund’s dominance faded. The fluency between the lines dropped. The tempo sagged.

"When Dortmund play from right to left, play into the spaces in between, then first of all you do a lot of chasing and don't really manage to get into the press. That was our problem," HSV captain Nicolai Remberg explained on Sky, underlining how much trouble the Greeks had caused.

Greek duo, brutal impact

Together, Konstantelias and Karetsas were the engine of that first-half storm. They rotated constantly, never allowing Hamburg’s midfield to settle. One dropped deep, the other pushed on. One received under pressure, the other ran beyond. The ball barely seemed to leave their feet, yet it always moved quickly and precisely.

"Brutal," was Anton’s verdict on the pair. "The mobility they have, how dangerous they are, that is a great quality at that age and we need that for the future as well. I am glad we have them with us."

That’s what makes the injury fear around Konstantelias hit even harder. Karetsas has found his ideal partner in crime – and might now lose him just as the relationship starts to bloom. For Dortmund, the question is brutally simple: how do you replace a player like that, just days before the transfer window closes?

Book didn’t hide his emotion. "I felt incredibly sorry for the lad. He has had a great presence here from day one, also in the dressing room. We all already like him very much. When you then play such a good first half and have to be substituted and something more serious is feared, it is just unbelievably annoying," he said, clearly shaken.

On Saturday, Kovac turned to Marcel Sabitzer. The Austrian brought control and defensive stability, but not the same chaos, not the same spark. On paper, Samuele Inacio is the closest stylistic replacement in the squad. In reality, the 18-year-old’s cameo against HSV ended almost as soon as it began with a lightning red card. Throwing him straight into Konstantelias’ role would be a huge call.

Maximilian Beier is the more seasoned option, but that would force another reshuffle. Kovac’s plan had been to use the Germany international on the flank. Move him inside and you open up a new hole on the wing.

Transfer clock ticking – and the Sancho question

The timing could hardly be worse. The summer window closes on Tuesday, 1 September, at 8 p.m. There is no long-term planning left. Only quick decisions.

"Depending on how serious the injury actually is, we will align our next steps accordingly. But one thing is certain: over the next three days, we are not planning anything," sporting managing director Lars Ricken said. The subtext was obvious: if the scans confirm the worst, that stance may have to change fast.

Some of the obvious names are already off the table. Said El Mala, a key target before Dortmund turned to Konstantelias, has extended his contract at 1. FC Köln. That route is closed.

So attention inevitably drifts back to a familiar face: Jadon Sancho.

He fits the profile. Like Konstantelias and Karetsas, Sancho can create dynamism from a standing start, break lines on his own, and tilt games with one dribble or one pass. His name has hovered over Dortmund’s planning for months, only to fade once the Greek duo arrived.

Now it could return to the discussion with force.

Sancho’s best football came in a BVB shirt. Since his contract at Manchester United expired, the 26-year-old has been in limbo, still without a new club and available on a free transfer. Financially, the risk would be limited for Dortmund, though only if Sancho accepts a substantial pay cut for a third spell in black and yellow.

The sporting risk is another matter. Can he still reach the level that once made him one of Europe’s most feared wingers? His recent loans at Chelsea and Aston Villa were, by common consent, disappointing.

Dortmund may soon have to decide how much they believe in that resurrection – and how much they are willing to gamble to fill the void left by a player who had only just begun to show what he could be.