Time for Isak & Wirtz to prove they are the future for Liverpool

The air at Anfield on Saturday was thick with a strange, melancholic electricity. When Mohamed Salah pulled up, clutched his hamstring, and gestured to the bench, the stadium didn’t just gasp. It held its breath. As he walked slowly down the tunnel, waving to the Kop, there was a collective, unspoken understanding between the player and the people: this felt like a goodbye. Not a perfunctory substitution, but a curtain call.

Thankfully, Arne Slot confirmed on Friday that the Egyptian King’s injury is minor and he is expected back before the season’s end. But for the here and now, the reality is stark. Liverpool travel to Old Trafford this weekend without their talisman. Without the man who has 13 goals in 16 games against Manchester United—more than any other player in Premier League history against the Red Devils. Against the rest of the ‘big six,’ Salah has amassed a staggering 49 goals and 22 assists.

Those numbers are not just statistics; they are a security blanket. And now, that blanket has been ripped away. This is no longer about speculation for next season. This is about the immediate future. This weekend, and for the run-in, the burden falls squarely on the shoulders of two men who have only started eight games together for Liverpool: Alexander Isak and Florian Wirtz. It is time for them to stop being the promise of tomorrow and start being the solution of today.

The Unlikely Duo: Why Eight Starts Together is a Red Flag

Let’s be brutally honest. Eight starts as a partnership is a terrifyingly small sample size for a duo expected to replace the output of Mohamed Salah. In a perfect world, Slot would have integrated them slowly, allowing chemistry to brew in cup ties and comfortable league wins. Instead, they are being thrown into a cauldron at Old Trafford, tasked with dismantling a United side that, despite its inconsistency, always rises for a Liverpool clash.

The numbers reveal a partnership still in its infancy. They have connected for only two direct goal contributions in those eight starts. But statistics don’t tell the story of the movement. Isak is a predator of the highest order—a striker who thrives on threading the needle between the centre-back and full-back, using his blistering pace to run the channels. Wirtz, conversely, is a ghost. He drifts, he probes, he turns in tight spaces and releases passes that others don’t even see.

The problem has been timing. Isak makes his runs expecting a ball over the top or a threaded through pass. Wirtz prefers to carry the ball, draw two defenders, and then slip a pass into a pocket of space. When it clicks, it is devastating. But eight starts is not enough to develop the telepathy required. Against United, they will need to force that connection through sheer will.

Old Trafford: The Acid Test Without Salah’s Safety Net

There is no forgiving fixture. Liverpool head to Old Trafford without their cheat code. Salah’s record against United is not just good; it is historic. He has scored in six consecutive appearances at Old Trafford. He has bullied defenders like Harry Maguire and Luke Shaw into submission. Without him, Liverpool lose a psychological weapon before a ball is even kicked.

This is where Alexander Isak must step into the void. The Swedish striker has all the tools to torment United’s high defensive line. If Lisandro Martínez steps out to engage, Isak has the agility to spin him. If Raphaël Varane drops deep, Isak has the pace to run beyond him. The key is service. Without Salah’s diagonal switches and direct running, the onus is on Wirtz and the midfield to feed Isak early and often.

For Florian Wirtz, this game is about bravery. Old Trafford is a cauldron of noise. The crowd will be baying for blood, especially if United get an early goal. Wirtz cannot go hiding. He must demand the ball in the half-spaces, turn his marker, and drive at the heart of United’s defence. His ability to draw fouls in dangerous areas could be Liverpool’s best route to goal, especially with set-piece threats like Virgil van Dijk lurking.

The duo must also understand the art of the “ugly” goal. Salah was a master of scoring scrappy, deflected, or poacher’s finishes. Isak needs to be a nuisance in the six-yard box. Wirtz needs to take shots from distance, even if they fly wide. They need to make the United goalkeeper, André Onana, work. They need to create chaos.

Expert Analysis: What Slot Must Change to Unlock the Pair

Arne Slot is a tactician, but even he must admit that the Isak-Wirtz axis has been a work in progress. To unlock them at Old Trafford, he needs to make two key adjustments.

• Push the full-backs higher: Trent Alexander-Arnold and Andrew Robertson must overlap relentlessly. This stretches United’s defensive shape, creating the pockets of space that Wirtz craves and the crossing angles that Isak thrives on. If the full-backs sit deep, United can compress the midfield, suffocating Wirtz.
• Use a false nine movement for Isak: Isak is not a target man. He is a runner. Slot should instruct him to drop deep occasionally, dragging a centre-back out of position. This leaves space for Wirtz to burst into the box as a late runner—a move they have practiced but rarely executed in games.

Defensively, the pair must also do their duty. Slot demands a high press. If Isak and Wirtz do not lead the press, Manchester United’s defenders like Jonny Evans will play out with ease. The first goal will be crucial. If Liverpool concede early, the pressure on the duo will multiply. If they score first, the crowd turns restless, and United’s fragile confidence can shatter.

My prediction? This will be a messy, fragmented performance from the duo. Do not expect a telepathic combination goal. Expect individual moments of brilliance. Isak might latch onto a loose pass and finish with venom. Wirtz might curl a shot from outside the box. But they will not dominate the game. The question is whether their flashes of quality are enough to secure a result.

The Verdict: The Future Starts Now, Not Next Season

Liverpool fans have been patient. They have watched Wirtz struggle with injuries and Isak adapt to a new league. They have seen flashes of what could be: a quick one-two, a clever lay-off, a goal ruled out for offside by a toenail. But patience is wearing thin. The club did not spend a combined £150 million on these two to be “project players.” They were brought in to win trophies.

With Salah’s future uncertain—his wave to the crowd felt like a farewell, even if his injury is minor—the club is at a crossroads. Do they build around the Egyptian for one more year, or do they fully commit to the Isak-Wirtz era? The answer will be written in the next few weeks. If they can produce against United, if they can carry the team through this injury crisis, then the transition becomes seamless.

If they fail? The narrative will shift. Questions will be asked about Slot’s system, about the scouting department, about whether these two are truly compatible. The pressure is immense. But great players are forged in fire, not in comfort. At Old Trafford, under the floodlights, with the ghosts of Salah’s past haunting the stadium, Alexander Isak and Florian Wirtz have a chance to prove they are not just the future of Liverpool. They are the present.

The time for waiting is over. The time for proving is now.

Source: Based on news from BBC Sport.