[2] Díaz spent the 2018 season with the rookie-level Arizona League Indians, playing in 41 contests and posting a batting line of .355/.387/.503 with 2 home runs and 28 RBI.

[6] On July 30, 2021, the Indians traded Díaz alongside relief pitcher Phil Maton to the Houston Astros in exchange for outfielder Myles Straw.

[7] Díaz was assigned to the Single-A Fayetteville Woodpeckers upon being acquired, and ended the year on a strong note, hitting .396 in 25 games for the High-A Asheville Tourists.

[8] Díaz was promoted to the Triple-A Sugar Land Space Cowboys for the 2022 season, batting .306 with an .898 on-base plus slugging percentage (OPS) in 486 plate appearances.

[15] He hit his first major league home run on May 14, 2023, versus Lucas Giolito at Guaranteed Rate Field, leading a 4–3 win over the Chicago White Sox.

[16] Díaz collected his first career four-hit game in the major leagues versus the Toronto Blue Jays at the Rogers Centre on June 5.

[17] On July 24, Díaz recorded the first walk-off hit of his career, a single to score Kyle Tucker and cap a 10–9 victory over the Texas Rangers.

[20] Among AL rookies with at least 350 plate appearances, he ranked first in slugging percentage (.540, SLG), second in batting and OPS, and tied for third in home runs.