( CNN ) -- The NFL , already under a spotlight for its handling of domestic violence cases , now has one of its players under investigation for an alleged sexual assault last month . A woman has filed a police report accusing C.J . Spillman of sexual assault , said Sgt . Robert Eberling of the Grapevine Police Department . No arrest has been made and no charges filed in the case . The alleged assault took place on September 20 at the Gaylord Texan Hotel , which is the Cowboys ' team hotel , CNN affiliate KDFW reported . `` We are continuing our investigation and have no further details to release at this time , '' Eberling said . CNN reached out to the NFL and the Dallas Cowboys but did n't receive immediate comment from either . Attorney Bruce Ashworth could n't be immediately reached , and agent Ron Slavin said , `` We 're not making a comment at this time . '' The alleged assault took place a day after NFL Commissioner Roger Goodell announced changes to the league 's personal conduct policy , including the creation of a committee to review the NFL 's personal conduct policy to address the league 's handling of domestic violence and sexual assault cases . Goodell said he hoped to have the committee in place by the time the Super Bowl is played February 2 , but he did not provide a time line for the committee to make changes to the policy . Word of the alleged attack came just days after attorney Gloria Allred held a news conference saying she had a client who was sexually assaulted by an NFL player . Allred did n't name her client , the player , the team he played for or the city where it was supposed to have taken place . She said the player participated in the team 's game the day following the alleged assault . `` Did the NFL allow the player to play yesterday with knowledge of the rape allegation ? '' her Monday letter states . `` The NFL Commissioner has been saying that they take allegations of violence against women seriously and they indicate that they are turning over a new leaf , but here , even though a rape allegation should have been reported to them it was not and what are they doing about that ? '' The news comes on a week in which Cowboys coach Jason Garrett told players of the team 's zero-tolerance policy when it comes to domestic violence , according to local media . If a player is involved in a domestic violence case , they wo n't play , regardless of due process , The Dallas Morning News reported . `` Part of what our jobs are as coaches is to create the right environment for our players to function both on and off the field , '' Garrett was quoted as saying . Though the NFL and Spillman 's team , lawyer and agent are n't commenting , the Fort Worth Star-Telegram reported that a Cowboys source told the newspaper that the team was dealing with Spillman differently because of questions about the veracity of the allegation . The allegations come on the heels of charges levied against NFL players alleging violence : . -- Baltimore Ravens running back Ray Rice was charged with aggravated assault in March after punching and knocking out his now-wife . He has been suspended indefinitely . -- Last month , Minnesota Vikings running back Adrian Peterson was charged with felony child abuse for whipping his son in Texas . He will take a leave with pay until his case is complete , the team said . -- Arizona Cardinals backup running back Jonathan Dwyer was indicted last month on a felony charge of aggravated assault and eight misdemeanors stemming from two July arguments with his wife in which he allegedly head-butted her and fractured her nose . -- Carolina Panthers star defensive end Greg Hardy , who has been granted a new trial this fall after a domestic violence conviction in July , has taken a voluntary leave with pay until his legal matters are resolved , the team announced last month . -- San Francisco 49ers defensive end Ray McDonald was arrested in August on suspicion of felony domestic violence after he allegedly got involved in an altercation with his fiancee , who was 10 weeks pregnant , a police source told The Sacramento Bee . San Francisco 49ers CEO Jed York said the team would await the outcome of the criminal case before determining whether to punish him . CNN 's Eliott C. McLaughlin , Steve Almasy , Dave Alsup and AnneClaire Stapleton contributed to this report .
Dallas player C.J . Spillman is part of a sexual assault investigation , police say . The alleged assault took place on September 20 at the Gaylord Texan Hotel . The NFL is making changes to its personal conduct policy . Several league players are facing abuse allegations .