VISTA, Calif. – Former NFL tight end Kellen Winslow II is scheduled to go to trial this month on charges of raping two women, ages 54 and 59, exposing his genitals to a third woman, age 55, as well masturbating in a hot tub at a gym next to a fourth woman in February, age 77.

The 35-year-old Winslow previously was accused of unauthorized entry into the homes of two other women in June, ages 71 and 86.

According to a recent court filing obtained by USA TODAY Sports, Winslow’s attorneys now are asking a judge to exclude from trial any evidence found at his residence related to internet pornography searches, especially porn involving “elders.” They are anticipating that prosecutors may try to introduce such evidence after authorities seized data from the home's computers.

“Society tends to view crimes against elders and children as especially volatile,” Winslow’s attorneys wrote in a request to exclude certain evidence from trial. “With this engrained mindset, the inflammatory nature of certain pornography is at an all-time high. In addition, Mr. Winslow is being charged with rapes of women who are more than likely classified as elderly due to their age. The testimony and evidence as a whole on this subject would paint Mr. Winslow in an extremely negative light by virtue of his mere presence at the residence or ownership over the technological devices.”

Winslow's attorneys noted at least one other adult and two minors had access to the internet at the searched residence. Therefore they said the jury would have to speculate whether Winslow “searched for all of the suspected pornography referred to by the detectives,” or if he even viewed such material at all.

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The request is one of several pre-trial battles that could affect Winslow’s chances of living the rest of his life behind bars after once living large as a top college player at Miami (Fla.) and then as a first-round draft pick by the Cleveland Browns in 2004. He has been incarcerated here since March 4, when he was jailed without bail after being charged with two misdemeanor counts of lewd conduct involving the 77-year-old woman. Those incidents came when Winslow had been out on bail while facing prior charges of raping two homeless women in their 50s, as well as raping an unconscious 17-year-old woman when he was 19 in 2003.

He has pleaded not guilty, and his felony jury trial is set to begin here April 30, about 35 miles north of downtown San Diego. Among other issues at play before trial:

• Winslow’s attorneys have advised prosecutors that they may present “some form of mental impairment defense to the charges,” according to court documents. San Diego County prosecutors said they want to exclude or limit proposed testimony by mental health professionals as possibly irrelevant or hearsay.

• There’s a dispute over whether the alleged crimes should be tried separately or together. His attorneys say they want separate trials on some separate allegations to give him due process and avoid inflaming the jury.

Prosecutors say the alleged crimes are connected and should be consolidated into a single case.

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They say in court documents that Winslow “committed a rash of sexually motivated crimes during the spring months of 2018 in which he kidnapped, forced oral copulation and raped a 54-year-old hitchhiker; lured, raped and sodomized a 59-year-old transient; exposed (his genitals) to a 55-year-old neighbor gardening in her yard; and, while pending prosecution for those offenses and released on bail … defendant rubbed (his genitals) directed at a 77-year-old woman at a fitness gym and ... later defendant masturbated in a Jacuzzi next to that same victim.”

They also say they want to include the alleged incident from 2003 “because it negates any argument that defendant’s conduct stemmed from any neurological, psychological or traumatic condition caused by his professional football career."

• Prosecutors are seeking to introduce evidence of Winslow’s “repeated unauthorized entry into the women’s locker room and shower area” at two gyms, 24 Hour Fitness and LA Fitness, from March 2018 to May 2018.

• Winslow’s attorney, Brian Watkins, has asked the judge to suppress evidence of a likely DNA match between Winslow and DNA remnants found on the pants of the 54-year-old hitchhiker who was allegedly raped on March 17, 2018. “The lab found a likely match,” Watkins wrote in court documents submitted last month.

However, he said Winslow’s DNA was collected during a separate “invalid” burglary arrest of Winslow nearly three months later and therefore should not be allowed. The arrest in question stems from an incident in June, when Winslow was suspected of burglary at the home of an 86-year-old woman at a mobile home park in Encinitas, Calif. At a preliminary hearing last year, a judge found that the evidence did not support a felony burglary charge. As a result, Watkins argues that Winslow’s arrest on this matter was invalid and therefore “this court must exclude the fruits of the constitutional violation – the DNA match between Mr. Winslow and Jane Doe #1,” the hitchhiker.

He said besides the DNA match, the state had “no way to establish identity, as Jane Doe #1 twice failed to identify Mr. Winslow as her attacker.” The accuser pointed to Watkins as the assailant during the preliminary hearing in the case in July.

• Prosecutors want the judge to allow Winslow’s “voluntary statements” to a detective after he was read his rights in custody. They say that during his conversation with the detective, Winslow claimed he had consensual sex with the two older alleged rape victims.

San Diego defense attorney Dod Ghassemkhani told USA TODAY Sports that if the DNA evidence is allowed, the filings are an indication of what Winslow’s attorneys will argue at trial.

“There are few defenses in sexual assault cases," Ghassemkhani said. "The defense can argue the DNA was tainted or that it was consensual. If the defense is consent, it is likely Winslow has to testify the women consented."

Ghassemkhani said one of Winslow’s lawyers, Marc Carlos, is among the best in California when it comes to arguing insanity defenses. Even if the judge allows such evidence on Winslow's mental state into the case, it would likely only mitigate his punishment, Ghassemkhani said.

If found guilty, Winslow could spend the rest of his life in prison, potentially closing the book on a public life that started with such promise. His father, Kellen Winslow Sr., is a Hall of Fame tight end who played for the San Diego Chargers in the 1980s. Winslow II followed as a top high school player in San Diego, and now a jury in San Diego County could determine the scope of his remaining days.

Messages left for a prosecutor in the case and Winslow's attorney, Marc Carlos, were not immediately returned.

Follow sports reporter Schrotenboer @Schrotenboer. E-mail: bschrotenb@usatoday.com