Two surgeries in 14 months: Dereck Lively II and the void beneath the rim in Dallas

On the opening morning of Dallas Mavericks training camp, the space under the rim in the practice gym was missing a familiar figure. Dereck Lively II was not there. No loud noise announced it, only an ESPN report confirming that the 22-year-old center had not been cleared for training camp. For an ordinary injury note, people read it and scroll past. This is not an ordinary injury. Within 14 months, this is the second surgery on Lively's right foot. Earlier, a December operation had formally ended his previous season after just 7 games. A single clap echoing in an empty gym is news too. Dereck Lively II stands roughly 7-foot-1, weighs around 230 pounds, and joined the Dallas Mavericks in the 2026 draft. In his rookie season of 2026-24, he was part of the run that took the Mavericks to the NBA Finals, where they lost to the Boston Celtics. The memory of a young man rolling hard in the pick-and-roll, launching at the rim like a rocket, has stuck in fans' minds. But look at the games-played column and a different picture emerges: 43 games across two seasons. Last season alone, he appeared just 7 times before the December surgery ended everything. At 22, Lively is entering the final year of his rookie contract. He is an asset of high economic value: a young, mobile, efficient center on a low salary, exactly the kind of player teams build depth around. The only problem is that he is rarely on the floor. And the Mavericks are now building their future around Cooper Flagg, the reigning Rookie of the Year. A Flagg-centered roster needs players who do not demand the ball, who play efficiently, and most importantly, who show up consistently. Lively is the theoretically perfect fit for that role. He just is not there when needed. In the modern game, centers carry value in two ways. One scores with his back to the basket, needs the ball, needs position, needs his own rhythm. The other creates value without the ball. Lively is the second kind. He is a vertical spacer, a screener who rolls to the rim, catches lobs, and waits on the weak side to protect the basket. With a 7-foot-1 frame and unusually quick feet for his size, Lively can handle both defensive roles a modern center needs: dropping deep to protect the paint and switching when pulled out beyond the arc. This is the kind of player any defensive system wants, and one the Mavericks cannot easily replace at the same price. His absence creates two concrete holes. On offense, the team loses the dive threat in pick-and-roll that opens space for shooters, along with second-chance points from offensive rebounds. On defense, there is no longer a backline presence covering teammates' mistakes, forcing Dallas into smaller lineups or a lower-quality center. That is a direct trade-off in points and resistance. Lively's career data is telling: 8.4 points, 7.0 rebounds, 1.5 blocks in 22.9 minutes per game. The numbers are not flashy, but per minute his interior scoring efficiency is solid, because he only finishes from high-percentage spots. The issue is sample size. Forty-three games across two seasons is not enough to say whether Lively is a long-term pillar or a prospect who never got the chance to prove it. The fairest read is per-36 or per-100 possession rates, but even those carry wide error bars with so few minutes. On the contract side lies the key intersection. Lively is in the final year of his rookie deal. The extension window opened last summer, and the absence of any agreement, or any sign of progress, reflects caution. For a 7-foot-1 center who has had two surgeries on the same foot in 14 months, signing a long, expensive deal is a risky decision. Under NBA rookie-contract rules, without an extension, Lively reaches restricted free agency, where the Mavericks retain the right to match any outside offer. In other words, the team has incentive to let the market set the price rather than pricing him themselves before knowing whether he can return. The likeliest path is a short-term deal with protections such as team options and games-played clauses, not a long-term security deal. Transfer news is never dry; it tells stories of lives turning sideways. Lively's case is a painful example of timing. For a normal player, the final contract year is a golden chance to prove value. For Lively, it becomes a trap: he needs to play to get paid, but playing more raises the risk of recurrence. Large-framed centers with recurrent foot injuries have long ranked among the highest-risk profiles in basketball history. Not because medicine cannot heal them, but because the load on the foot of a 7-foot-1, 230-pound man is too great for a structure surgically altered twice to bear normally. So where do the Mavericks stand in the bigger picture? They are not contenders. They are a young team building around Cooper Flagg, and their competitive window is only just opening. In that context, Lively's injury is more of a timeline risk than a title-odds catastrophe. If he cannot play, the team must find a replacement from outside, where the market competes for exactly this type of mobile, rim-protecting, off-ball center. Every dollar spent there is a dollar less for other pieces. What is easily overlooked is that a team saying it is not discouraged does not mean it is not worried. Sourced reports suggest Dallas is managing the situation with careful communications. The reassurance addresses fan emotion, not recovery probability. The injury report gives no return date; it only says his availability for the start of the season is undetermined. The more reasonable reading: the Mavericks have planned for the season assuming Lively is absent, and if he returns early, that is a bonus. That is the necessary mindset when you build around a player who has appeared in only 43 games over two years. It is also worth noting that the emotional weight on a 22-year-old, once the hope of an entire city after the 2026 Finals, is enormous. Mavericks fans in Dallas are used to cheering for people, not numbers. And when a person keeps walking into operating rooms, the story moves beyond the box score. Loud or empty, the gym follows the same rule, only the players change. Dereck Lively II is still 22, still tall, and still has a chance. But that chance is passing week by week through a training camp without him. The question Dallas must answer is not whether Lively can play well, but whether they can build a team around someone who is regularly not on the floor. When the answer arrives, it may shape how the Mavericks see the next several years.