Deion Sanders underwent surgery to address blood clots this week ... and Karrueche Tran was right by his side at the hospital once again, helping him prepare for the procedure. The NFL Hall of Famer's son, Deion Jr. , posted a new vlog Tuesday evening ... showing Sanders at a medical facility gearing up to go under the knife. The "Claws" actress made an appearance in the 24-minute clip ... helping Sanders put on his hospital gown. They also shared a couple of laughs while he sat in the hospital