Thompson signed with Oostende in March 2019 to replace the injured Marin Maric. It was clear from the start that Thompson was a very dominant center.
He averaged 14.8 points and 6.6 rebounds in 19 minutes per game in EMBL !
In 2019-2020, he averaged 12.1 points, 7.6 rebounds in 20 minutes in EMBL.
But Thompson was also very impressive in Basketball Champions League, he recorded 6 double-doubles in 13 games. He averaged 13 points and 10.1 rebounds in the BCL. He was the only player to average a double-double in the competition and of course the top rebounder. In February, he suffered a big knee injury and was out for the rest of the season.
No doubt that Euroleague team Alba Berlin was impressed by his numbers and decided to sign him to replace Landry Nnoko.