Photo: De'Aaron Fox Wears No. 4 Spurs Jersey After Kings Trade; Castle Keeps No. 5

De'Aaron Fox will switch from his iconic No. 5 to No. 4 as he moves from Sacramento to San Antonio, while rookie Stephon Castle, the fourth overall pick last year, will keep No. 5.

Fox was initially planning to take No. 2 for the Spurs, as broadcaster Don Harris noted:

Fox was traded Sunday to the San Antonio Spurs in a multi-team deal that sent the Chicago Bulls' Zach LaVine to the Sacramento Kings.

Fox was drafted No. 5 overall in the 2017 NBA Draft, which influenced his jersey number. In addition, after wearing No. 0 at Kentucky, he switched back to No. 5 as a tribute to his high school days at Cypress Lakes High School and his time with Team USA.

With the Kings, Fox averaged 21.5 points, 6.1 assists, 3.9 rebounds and 1.4 steals per game over nearly eight seasons. He shot 47.1 percent from the field and 33.3 percent from three.

Castle was initially considered a key piece in trade discussions for Fox. However, after expecting to include the former first-round pick to land the All-Star guard, the Kings completed the deal without moving him, per the Sporting News' Daniel Mader.

Fox was set to be the first person to wear No. 2 for the Spurs since Kawhi Leonard, who won 2014 Finals MVP in the number. However, he will instead put the No. 4 on his back.

Following his trade, Fox took to social media to share heartfelt words for the organization he started with.

"Sacramento I can't quite find the words to express want I want to say, but thank you," Fox wrote. "Coming in as a 19-year-old kid and leaving as 27-year-old man, I'm grateful got to spend the beginning of my young adulthood here."

"The love for the city is unmatched. To the fans - y'all deserve the best. I wanted to end my career here and never expected it would end this way, but I'll always be grateful for your support. Thank you for the love you've showed me and my family. Sacramento will always hold a special place in my heart. - Fox"