"I have been going back and forth the last few weeks trying to figure out the right things to say, and it comes down to two simple word: THANK YOU!"
Leonard didn't directly mention Toronto or the Raptors, but did say that he was "looking forward to the next chapter in my career".
Leonard went on to thank his family, Popovich, and the fans.
"THANK YOU Pop I'll always be grateful for my growth under your guidance", Leonard wrote.
In a "Thank You" letter, he expressed his gratitude to the city, its fans, the Spurs organization and to Gregg Popovich.
Barcelona duo Yerry Mina and Andre Gomes join Everton
Mina , who impressed for Colombia at this summer's World Cup , had been pursued hard by the Blues since his exploits in Russian Federation .
THANK YOU to every one of my teammates I've played with over my seven years in the National Basketball Association.
"Through ups and downs - glad there were many more ups!"
The 27-year-old native of Los Angeles has yet to speak publicly since the trade, which came at his request after a tumultuous 2017-18 season in which he was limited to just nine games because of an injury to his right quadriceps. "I'll never forget what we have shared and accomplished together", he said.
"The best part about San Antonio, they do right by you", the Spurs forward said, according to Dom Amore of the Hartford Courant.
While last season was one to forget for Leonard, his time in San Antonio will be better defined by his 2013-14 campaign, when he helped the Spurs capture their fifth National Basketball Association title while being named MVP of the Finals.
It's likely to be a season of wondering and hoping for the Raptors, as they try to convince their quiet superstar to re-sign beyond the 2018-19 season.