Tristan Thompson Becomes a U.S. Citizen

Tristan Thompson is all about changes these days ... and he's just changed his citizenship to the U.S. of A.

Tristan was sworn in as an American citizen earlier this week ... shortly after deciding to join the Boston Celtics.

Tristan was a Canadian citizen and came to the United States to study at the Univ. of Texas back in 2009. He was only there a year, before joining the NBA draft.

Tristan says, “I came to the U.S. on a student visa and have always had big dreams. I’m now truly living the American dream.”

Dude's got a lot to celebrate. The Boston deal's netting him $19 mil over 2 years.

The athlete’s U.S. citizenship comes after news broke on November 21 that he reached a two-year, $19 million deal with the Boston Celtics as its new center.

Thompson began his professional basketball career in 2011 with the Cleveland Cavaliers, where he played for nine seasons.

On the home front, Khloe says she and 2-year-old True are staying put in L.A. ... she just bought a new home right next to her mom. Presumably, there will be lots of commuting.

Khloe and Tristan got back together during the pandemic, and from all accounts, they're going strong.