Formula 1’s reserve-driver stories usually arrive with a tidy label: one driver is injured, another fills in, normal service resumes. Red Bull’s Monza plan is no longer that simple.
Isack Hadjar will miss a second consecutive Grand Prix while he continues to recover from the wrist injury sustained during the summer break. Liam Lawson therefore remains alongside Max Verstappen at Red Bull; Yuki Tsunoda again takes Lawson’s Racing Bulls seat; and Ayumu Iwasa will drive Verstappen’s car in Friday’s first practice session. The announcement is a three-seat operational reshuffle, not merely a name on a substitute list.
That is worth watching because it turns a one-off rescue into a genuine stress test for Red Bull’s driver system. At Zandvoort, Lawson qualified eighth and finished seventh on his abrupt return to the senior team; Tsunoda was 11th in his first 2026 race appearance. Neither result settles what either man can do at Monza, but it does mean the group arrives with working knowledge rather than blank notebooks.
Lawson gets the useful kind of second chance
Lawson’s first outing back in the RB22 was inevitably compressed. He had to switch cars, engineering routines and reference points with little notice, then deliver on a Sprint weekend where lost track time compounds quickly. His P7 was a strong contribution, but even he described the adaptation as challenging.
Monza gives him the next, more informative step: a normal race weekend in the same car. That distinction matters. A substitute can impress through composure in the first emergency call-up; a second start shows whether the feedback loop is beginning to function. Can he identify what the car needs before qualifying? Can the team build Friday’s work into a Sunday plan? Those are the questions that turn a capable fill-in into a credible strategic asset.
The circuit is not forgiving. Monza rewards clean braking into the chicanes and confidence in a low-downforce car that moves around at high speed. The long straights also magnify small flaws in deployment, drag or exit traction. Lawson does not need to match Verstappen for this weekend to be valuable. Red Bull needs a second car that can give it reliable setup direction and remain relevant to rivals’ pit-wall decisions.
There is a useful comparison close to home. In GearPulse’s look at Alpine giving Franco Colapinto matching hardware at Monza, the central value was removing a variable before judging drivers and development. Red Bull’s situation is different—Lawson is learning a car rather than receiving a new package—but the principle is similar: a repeat weekend produces evidence that a one-off cannot.
Tsunoda’s return keeps the chain from breaking
Lawson’s Red Bull opportunity only works cleanly because Tsunoda can cover the Racing Bulls seat. That sounds obvious, yet it is exactly where temporary arrangements can unravel. A team facing an absence can protect its lead car but leave the junior operation with a driver who has no recent race rhythm, no current setup language and no realistic way to make an immediate contribution.
Tsunoda avoids that failure mode. After finishing just outside the points at Zandvoort, he returns to a car he has now raced in contemporary trim, alongside Arvid Lindblad. The target is not romantic redemption; it is continuity. Racing Bulls needs two cars that can participate in qualifying and strategy rather than one regular and one passenger learning on the fly.
It also creates a fairer lens on both stand-ins. A single appearance can be distorted by safety cars, traffic or an unlucky tyre call. Consecutive weekends do not eliminate those variables, but they make them harder to hide behind. If Lawson again extracts solid pace in the RB22 and Tsunoda stays close to Racing Bulls’ baseline, the story becomes less about emergency substitution and more about depth that the organisation can actually use.
Iwasa adds one more moving part—and a safeguard
Iwasa’s FP1 outing in Verstappen’s car is officially part of Red Bull’s rookie-session requirement, but the timing gives it a little more texture. With Lawson still getting acquainted with the senior operation and Hadjar unavailable, Red Bull is asking its wider pool to contribute without compromising the race line-up.
There is a limit to what can be read into one practice hour. Teams run predetermined programmes; track grip evolves; and an FP1 lap chart cannot rank drivers or decide future seats. Still, the session has practical value. Iwasa can complete baseline runs, protect the mandated-session schedule and return useful correlation feedback, while Verstappen retains the later practice sessions to prepare for qualifying. In a season where every allocation choice has consequences, that is sensible resource management rather than a headline audition.
The broader context is Red Bull’s need to retain options without turning people into disposable placeholders. Hadjar’s recovery is being treated cautiously, with the team explicitly saying it will take no unnecessary risks. That is the correct priority. The test is whether the group behind him can keep the two teams functioning well enough that his return is made on medical readiness, not because the structure has run out of alternatives.
Bottom line
Monza will not decide Lawson’s future, Tsunoda’s future or Hadjar’s place in the programme. It should not. Two substitute weekends are a small sample, and the Temple of Speed creates its own peculiarities.
But the revised line-up does offer a sharper measure of Red Bull’s bench strength than Zandvoort could. Lawson now has the chance to turn a promising emergency drive into repeatable work; Tsunoda can keep Racing Bulls stable; Iwasa can support the programme without disrupting it. When one injury reshapes three cars, resilience is not a slogan—it is whether all three still leave the garage with a useful job to do.