Athletic Club are about to embark on one of the most demanding preseasons in their recent history under new German coach Edin Terzic. With the squad just beginning their summer break, plans are already in motion for a July packed with high-intensity training and an unusually high number of friendly matches. The club is expected to officially unveil the blueprint in the coming days, but sources confirm that Terzic is designing a program that mirrors the rigor of a Champions League campaign—despite Athletic not qualifying for any European competition next season.
The decision to adopt such a grueling schedule reflects Terzic’s deep-seated belief that elite fitness and tactical sharpness can be built only through repeated exposure to match-intensity workloads. Instead of easing into the new campaign, Athletic will reportedly line up a series of friendlies against varied opposition, creating a rhythm that resembles a congested European fixture list. Double sessions and advanced conditioning drills will supplement the matches, leaving no room for complacency. The message is clear: Athletic must be ready to compete from the first whistle of the La Liga season.
Players are currently on vacation, but not without instructions. The club’s performance staff has already distributed individualized maintenance programs to ensure that every squad member returns to Lezama in optimal shape. Internationals, who will be involved in the 2026 World Cup in North America, are guaranteed a minimum of two consecutive weeks of rest—extending to three in some cases—before they join the group. This cautious approach aims to prevent burnout while still pushing the collective to new physical heights, a delicate balance Terzic has mastered during his career.
For Athletic, the absence of European football could represent a hidden advantage. Without the distraction of midweek continental matches, the team can focus entirely on domestic competitions. Terzic’s preseason is designed to exploit that opportunity: by simulating the demands of a European calendar, he hopes to build a squad capable of sustaining a top-seven challenge in La Liga and possibly a deep run in the Copa del Rey. The Basque club has not finished in the top four since 2013-14, and the new coach’s methods signal an end to mid-table contentment.
Terzic’s pedigree lends weight to the approach. The 43-year-old led Borussia Dortmund to a DFB-Pokal triumph in 2021 and came within a whisker of the Bundesliga title in 2023, earning a reputation for energetic, front-foot football built on relentless pressing. His training sessions are notoriously intense, often described by former players as mini-games played at full throttle. Adapting that philosophy to a squad bound by Athletic’s unique Basque-only recruitment policy presents a challenge, but one Terzic appears eager to tackle. The scarcity of transfer options means every player in the system must be maximized, and preseason is his laboratory.
Athletic’s identity underlines the importance of this preparatory period. Unlike rivals who can buy ready-made stars, Los Leones must forge their own. The club’s cantera, or youth academy, has produced gems like Nico Williams and Oihan Sancet, but integrating academy graduates into a high-tempo system requires time and relentless drilling. Terzic’s approach—packing the summer with match after match—will accelerate that process, giving fringe players and newcomers a chance to prove themselves under game conditions. It is a high-risk, high-reward strategy that could define the season.
The friendly schedule itself will be carefully curated. Athletic will likely face a mix of local rivals, lower-league sides, and top-division opponents, mirroring the varied challenges of a league campaign. Sources indicate that the sporting directorate has received no shortage of invitations, given the club’s attractiveness as a preseason opponent. Terzic will use these fixtures not just for fitness but for tactical experimentation, trying different formations and pressing triggers. With potential departures and arrivals still possible, the friendlies become a proving ground.
Critics might argue that such a heavy workload before the season even begins could lead to fatigue or injuries. However, sports science has evolved, and modern periodization allows for high loads if recovery is managed correctly. Terzic’s staff includes fitness specialists who will monitor player data daily, adjusting workloads to avoid overtraining. The fact that the club is willing to adopt this model suggests a calculated gamble: a super-fit team can steal points early in the season while opponents are still finding their rhythm. The benefits could be substantial in a league as competitive as La Liga.
The 2026 World Cup adds another layer of complexity. With the tournament concluding in mid-July, key internationals like Spain’s Unai Simón and potential other representatives will miss the early part of preseason. Terzic has already factored this into his planning, ensuring that those players receive tailored programs to maintain fitness during their holiday and reintegrate smoothly. The staggered return could actually allow more individualized work, turning a potential disruption into an opportunity for finer tuning.
Beyond tactics and fitness, Terzic’s preseason declaration is a statement of ambition. After years of hovering around mid-table, Athletic’s hierarchy clearly wants to reassert the club as a competitive force. Hiring a coach of Terzic’s profile—young, dynamic, and proven in high-stakes environments—was the first signal. Now, his approach to the summer confirms that Athletic won’t be outworked. In a league dominated by the financial might of Real Madrid and Barcelona, sweating the small stuff is a way to close the gap. The preseason becomes a metaphor for the entire project: intense, meticulous, and unapologetically demanding.
Fans at San Mamés have much to look forward to. While preseason tours rarely set pulses racing, the promise of a team visibly fitter and more tactically drilled brings hope. If Terzic’s blueprint translates into early-season victories, the concrete bowl of Bilbao will quickly rally behind the new manager. There is a palpable sense that Athletic are building something, and the foundation will be poured in the heat of July, one ruthless session at a time.
Ultimately, the decision to prepare like a Champions League team without actually being in the competition speaks to a mentality shift. Athletic Club aren’t waiting for an invitation to raise their standards; they are imposing them from within. Whether the gamble pays off will be revealed in the autumn, but for now, the message is unmistakable: under Edin Terzic, Athletic intend to run harder, think faster, and refuse to be bystanders. Based on reporting from Marca.
