It's been a tragic weekend for Usher and his ex Tameka Foster. Now the singer's estranged wife is speaking out about her 11-year-old son Kyle Glover's grave condition after being hit by a speeding jet ski on Saturday. 
"He's bad," Foster tells RadarOnline.com. “Kyle, You are strong.. You'll be saved I know it," the mother of five wrote on her Facebook page. "I love you my baby. I need all #Prayers for my son! thanks you everybody!” 

TMZ reported on Sunday that Kyle was pronounced brain dead by doctors at the Atlanta hospital he was airlifted to immediately following the accident on Georgia's Lake Lanier. The as-yet-unnamed 38-year-old man operating the jet ski appears to be cooperating with local authorities, who are investigating the incident.
Despite their ongoing divorce and custody battle over their sons Usher V and Naviyd, Usher has been by Tameka's side during the ordeal, even chartering her a jet so she could rush to Kyle's bedside. Usher developed a tight relationship with his three stepchildren during his relationship with Foster and remains close with them today. 
While there seems to be no chance Kyle Glover will make a recovery, it is not known what decision Foster and her family will make in regards to keeping him on life support. 
Our thoughts and prayers are with the family. 

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(Photo: Johnny Nunez/WireImage)