Tristan Thompson apologized to his late mother, Andrea while honoring her in an Instagram post he shared on Sunday.

The tribute was accompanied by a carousel of photos of him and his mother. Thompson took the opportunity to reflect on his past mistakes while hoping for a better tomorrow.

“Dearest mommy in heaven, It has been one month since you’ve been gone. I’m in disbelief. I’m in the deepest part of sorrow & grief,” he wrote. “My soul is empty as I come to terms that my biggest supporter/superhero is gone. I cannot thank you enough for always being a woman of faith, being one of God’s warriors, fighting back with whatever the world threw our way. You constantly protected us through prayer. My hero you fought all the battles you needed to and it was time for you to go home.”

The 31-year-old NBA player then apologized for failing to uphold the values his mother raised him with during his childhood and promised that he would be an honorable man moving forward.

All I can say is, I’m sorry mommy for the wrong decisions I’ve made in my life. I’m sorry for the embarrassment & pain. You raised me better than what I was able to show you,” he added.

“But I have also learned sorry is not enough. Actions speak louder than words. So I won’t just say sorry. Stay tuned to the ways I will show the world what an amazing son you raised. I will show you that even when we fall & make mistakes, we get back up.”

In Jan. 2023, Thompson’s mother suffered a heart attack in her Toronto home before being rushed to the hospital, where she later died.