Former Philadelphia Eagles wide receiver DeSean Jackson pleaded with the court to block the public from viewing his ongoing custody battle — days after he accused his ex of being “brainwashed.” According to court documents obtained by RadarOnline.com, the NFL star asked a Los Angeles Superior Court judge to seal the entire case he filed against his ex, Kayla Phillips. “I am requesting a court order to seal the records of the child custody case of DeSean Jackson Sr. vs. Kayla Phillips on the grounds that, I, DeSean Jackson, Sr, the petition in this matter, am a retired, former NFL football play…