2026-27 projection
| GP | MPG | FG% (FGA) | FT% (FTA) | 3PM | PTS | REB | AST | STL | BLK | TO |
|---|---|---|---|---|---|---|---|---|---|---|
| 46 | 10 | .440 (3.4) | .800 (0.7) | 0.6 | 3.6 | 1.4 | 2.0 | 0.4 | 0.1 | 0.9 |
Correction 2026-07-18: raised from 44 GP × 9 MPG to 46 × 10. He is a signed rostered rookie rather than a rights question, and Dallas carries one fewer bench guard than this desk previously modelled after Brandon Williams left unsigned.
Dallas's official acquisition release lists 9.4 points, 2.9 rebounds, and 3.5 assists in 17.6 minutes across 23 Liga ACB games with 45.2/42.9/81.8 shooting. Valencia's season-end release used a slightly different cutoff and cited 9.6 points, 3.0 rebounds, and 3.7 assists in just over 18 minutes. He added a 16-point, 12-assist Summer League game on July 13.
Fantasy translation
- Nine-category: no redraft value without 20+ minutes; watch assists, threes, and turnovers if Irving is absent.
- Points: development stash in very deep leagues, not a standard draft pick.
- Dynasty: intriguing age-20 guard because 6-foot-5 passing has a scalable ceiling. Value remains outside the premium rookie tier until NBA burst/finishing translate.
Role, floor, ceiling, uncertainty
- Median role: ten NBA minutes when active plus development work.
- Floor: G League/bench season behind Irving, Nembhard, Sasser, and Flagg initiation.
- Ceiling: 18 MPG by spring with five assists and one three if the team prioritizes youth.
- Contract/status: signed. Dallas signed the No. 25 pick to a four-year, $16.3 million rookie-scale contract on July 3, 2026, at the full 120% of scale, worth $3,182,280 in 2026-27. He is on the active roster and is not a draft-and-stash.
Sources
- Sergio De Larrea NBA draft profile — official international baseline; accessed July 18, 2026.
- Mavericks acquire De Larrea's draft rights — official Dallas release with Liga ACB line, June 24, 2026.
- Valencia names De Larrea 2025-26 Best Young Player — official club release, May 31, 2026.
- Summer League 16 points and 12 assists — July 14, 2026 report.
- Mavericks sign De Larrea to a rookie contract — July 3, 2026; four years, $16.3M at 120% of scale.
- ESPN Dallas roster — accessed July 18, 2026; listed on the active roster.
Career record
Pre-NBA: Valencia Basket product, born December 4, 2005 in Valladolid, listed at 6-6 and 204 pounds. He averaged 18.0 points for Valencia's reserve side in the third-tier Segunda LEB in 2021-22, then spent two years on loan at CB L'Horta Godella in LEB — 10.1 points in 2022-23 and 13.7 in 2023-24 — while making his EuroLeague debut at 17. His first real senior season with Valencia came in 2024-25, and it was small: roughly 3.6 points, 2.2 assists and 2.2 rebounds. The 2025-26 breakout was the season that got him drafted — 9.6 points on 40.7% from three, 3.0 rebounds and 3.7 assists in just over 18 minutes a game in Liga ACB, a 12.7 efficiency rating and a plus-7.15 net rating that ranked third in the league, on a Valencia team that won the ACB title. He was named 2025-26 Liga ACB Best Young Player and was 2025 Spanish Supercup MVP. Youth international honors: silver at the 2022 FIBA U17 World Cup, gold at the 2023 FIBA U19 World Cup. Draft: 2026, first round, 25th overall by the Lakers; rights traded to New York, then to Dallas in a three-team deal.
No NBA record yet. De Larrea has not played an NBA regular-season game. The ACB line above is his most recent professional season. Note that Dallas's acquisition release cited a slightly different partial-season cutoff (9.4 points, 2.9 rebounds, 3.5 assists in 17.6 minutes over 23 ACB games, 45.2/42.9/81.8) than the club and league figures covering the full regular season; treat the shooting splits as a partial sample.
Durability: No NBA history. He played a full ACB regular season in 2025-26 alongside EuroLeague appearances with no reported absence, having gone from two senior games in 2023-24 to a full rotation load in three years.
Trajectory: A 20-year-old, 6-6 lead guard whose value is entirely in the passing and the size at the position — the ACB season showed he can run a EuroLeague-caliber offense in short bursts and shoot well enough off the catch to be playable. What it did not show is a first step or finishing ability against NBA length, and that is the whole question. Dallas signed him rather than stashing him, so he will be in the building, but the guard room ahead of him is Kyrie Irving, Ryan Nembhard and Marcus Sasser plus initiation from Cooper Flagg. He is a dynasty stash only. He becomes redraft-relevant in 2026-27 only if Irving misses extended time and Dallas decides it prefers a big passer to a scoring combo guard behind him — a two-injury scenario, realistically.
Career sources: Valencia Basket, Best Young Player release · Wikipedia · NBA draft prospect page · Mavericks acquisition release · Eurohoops draft-night report
Open questions
- Does Dallas use G League assignments to protect his development, now that the contract is signed?
- Can he create separation and finish against NBA length?
- Is 2026-27 a development season or a real rotation competition?