The Mavericks announced today (via Twitter) that they’ve officially signed 25th overall pick Sergio de Larrea to his rookie scale contract.

While most announcements of first-round picks signing their contracts are procedural, there was some uncertainty about whether Dallas would add the 6’5″ Spanish guard to its roster this year or whether he’d spent the 2026/27 season overseas as a draft-and-stash prospect. This transaction answers that question.

According to Marc Stein of The Stein Line (Twitter link), de Larrea signed for the full 120% amount of his rookie scale slot, which means he’ll earn $3.18MM as a rookie and up to $16.33MM over four years.

De Larrea, who was acquired by the Mavericks in a trade up from No. 30, has spent his career to this point playing in his home country for Valencia. He took on a regular role for the club over the past two seasons, averaging 9.7 points, 3.7 assists, and 3.0 rebounds in 18.3 minutes per game across 28 domestic contests in 2025/26.

In addition to showing off some play-making skills with Valencia, de Larrea has shot the ball well, making 41.2% of his three-pointers in Liga ACB, EuroLeague, and EuroCup play since the start of the 2024/25 season. The 20-year-old is also a Liga ACB champion, as Valencia beat Barcelona for the 2026 title one day after de Larrea was drafted last week.

While we still see a handful of second-rounders become draft-and-stash prospects each year, it has become increasingly rare for a team to take that path with a first-rounder. The last player to be selected in the first round and not immediately sign with his NBA team was Leandro Bolmaro in 2020.